Jimmy welcomes former professional basketball player Charles Barkley plus an interview with and musical performance by The Chicks.

Actor Riz Ahmed ("Mogul Mowgli" and "The Long Goodbye"); Tim McGraw (album, "Here on Earth") talks and performs.

Jamie Foxx; Lauren Graham; AJR performs

Octavia Spencer, Melissa McCarthy, Nasim Pedrad, Fitz, Bryce Vine

David Alan Grier, Topher Grace, All Time Low

Ray Romano, Romany Malco, Nessa Barrett, Jxdn, Travis Barker

Luke Bryan, Katey Sagal

Mark Wahlberg, Hunter Biden, The Wallflowers

Andy Garcia, Clayton Kershaw, Noga Erez

John Stamos, Katheryn Winnick, Easy Life

Terry Crews, Corinne Foxx, Greta Van Fleet

Anderson Cooper, Emily VanCamp, Zoe Wess

Riz Ahmed, Andra Day

Ellen DeGeneres, Billie Joe Armstrong, Jimmie Allen, Brad Paisley

George W. Bush, Maroon 5

Gal Gadot, Eric Andre, Kale

Arnold Schwarzenegger; Kyla-Drew.

Dave Grohl performs; actor Billy Porter.

Justin Theroux; Mike Lindell; Tom Jones.

Maya Rudolph; Malcolm Gladwell.

Sean Hayes; Casey Wilson; Jason Aldean.

Rosario Dawson, Anthony Fauci, and Anitta.

Rob McElhenney; Uzo Aduba; Middle Kids.

Julianna Margulies; Daniel Dae Kim.T

Actor Ewan McGregor; comic George Wallace; Lucky Daye and Yebba perform

Model Heidi Klum; comic Mike Epps; Madness performs.

Wanda Sykes; Max Minghella; Mod Sun; Avril Lavigne

Chris Rock; Samira Wiley; Morray

Shaquille O'Neal, Patton Oswalt, Chase Rice

Gabrielle Union, Dwyane Wade, Kirby Howell-Baptiste, Royal Blood

Don Cheadle, Patti Harrison, Lake Street Dive

Ryan Seacrest, Yvonne Orji, Counting Crows

Elizabeth Banks, Danny Pudi, The Band CAMINO

Lena Waithe, Kelvin Harrison Jr., Allison Russell ft. Brittney Spencer & Brandi Carlile

Emily Blunt, Diego Boneta, The winner of “American Idol”

Emma Stone, Rory Scovel, Chloe Moriondo

Jimmy welcomes actor David Harbour, actor William Jackson Harper, and a musical performance by Half Alive.

Jimmy welcomes actress Rachel Weisz, actor Rob Riggle, and a musical performance by Willie Jones.

Jimmy welcomes comic Michael Che, actor Cillian Murphy, and a musical performance by The Linda Lindas.

Jimmy welcomes DJ Khaled, actress Florence Pugh, and a musical performance by Fousheé.

Jimmy welcomes actress Aidy Bryant, Katie Thurston (“The Bachelorette”), and a musical performance by John Mayer.

Jimmy welcomes actor Tom Hiddleston, actors Maya Erskine & Anna Konkle, and a musical performance by Chiiild.

Jimmy welcomes actor Liam Neeson, actress Gugu Mbatha-Raw, and a musical performance by T-Pain & Kehlani.

Jimmy welcomes authors Bill Clinton & James Patterson (“The President’s Daughter”), actor Wiz Khalifa, and a musical performance by Jackson Browne.

Jimmy welcomes actress Elisabeth Moss, actor Omar Sy, and a musical performance by Valerie June.

Jimmy welcomes actor Owen Wilson, actress Betty Gilpin, and a musical performance by Spice, Sean Paul & Shaggy.

Jimmy welcomes actress Zooey Deschanel, actor Sam Richardson, and a musical performance by Kodak Black.

Jimmy welcomes actor Dax Shepard, actress Monica Padman, actor Tony Hale, and a musical performance by Saweetie.

Jimmy welcomes actress Sarah Paulson, actor Frank Grillo, and a musical performance by Lucy Dacus.

Jimmy welcomes film director Quentin Tarantino, comic Iliza Shlesinger, and a musical performance by Lukas Nelson & Promise of the Real.

Jimmy welcomes actor Billy Crystal, actress Emma Corrin, and a musical performance by Seventeen.

Jimmy welcomes actor Chris Pratt, former attorney Michael Cohen, and a musical performance by The Isley Brothers & Snoop Dogg.

Guest host Wanda Sykes welcomes actor Ludacris, actress Kim Fields, and a musical performance by Merry Clayton.

Guest host Wanda Sykes welcomes actor Colin Farrell, comedian Quinta Brunson, and a musical performance by Japanese Breakfast.

Guest host Wanda Sykes welcomes actor Nick Kroll, basketball player Chiney Ogwumike, and a musical performance by Macy Gray & the California Jet Club.

Guest host Arsenio Hall welcomes actress Megan Fox, and a musical performance by Amorphous featuring Kelly Rowland.

Guest host Arsenio Hall welcomes professional basketball player LeBron James, actor Richard E. Grant, and a musical performance by Tainy x Yandel.

Guest host Phoebe Robinson welcomes comedian Chelsea Handler, professional basketball player Chris Bosh, and a musical performance by Moneybagg Yo.

Guest host Nick Kroll welcomes actor Seth Rogen, actor Winston Duke, and a musical performance by Gucci Mane & Big Walk Dog.

Guest host Anthony Anderson welcomes rapper Offset, actor Henry Golding, and a musical performance by Robin Thicke.

Guest host Anthony Anderson welcomes actors Margot Robbie, John Cena & James Gunn, and a musical performance by PnB Rock featuring Swae Lee & Pink Sweats.

Guest host Anthony Anderson welcomes actor Christian Slater, actor Chase Stokes, and a musical performance by Kem.

Guest host David Spade welcomes comic Whitney Cummings, skateboarder Jagger Eaton, and a musical performance by Sharon Van Etten & Angel Olsen.

Guest host David Spade welcomes actress Molly Shannon, actress Addison Rae, and a musical performance by Morgxn & Sara Bareilles.

Guest host Sarah Silverman welcomes actor James McAvoy, filmmaker Taika Waititi, and a musical performance by Max & Ali Gatie.

Guest host Sarah Silverman welcomes actor Kenan Thompson, actress Regina Hall, and a musical performance by The Killers.

Guest host Maren Morris welcomes singer-songwriter Willie Nelson, comic Megan Stalter, reality-TV personality Sutton Stracke, and a musical performance by Gabriels.

Guest host Julie Bowen welcomes actress Minnie Driver, actor Jacob Elordi, and a musical performance by Ashe.

Guest host Sean Hayes welcomes actress Awkwafina, actress Keke Palmer, and a musical performance by Daryl Hall & John Oates.

Guest host Anthony Anderson welcomes rapper Offset, actor Henry Golding, and a musical performance by Robin Thicke.

Guest host Anthony Anderson welcomes actors Margot Robbie, John Cena & James Gunn, and a musical performance by PnB Rock featuring Swae Lee & Pink Sweats.

Guest host Anthony Anderson welcomes actor Christian Slater, actor Chase Stokes, and a musical performance by Kem.

Guest host David Spade welcomes comic Whitney Cummings, skateboarder Jagger Eaton, and a musical performance by Sharon Van Etten & Angel Olsen.

Guest host David Spade welcomes actress Molly Shannon, actress Addison Rae, and a musical performance by Morgxn & Sara Bareilles.

Guest host Sarah Silverman welcomes actor James McAvoy, filmmaker Taika Waititi, and a musical performance by Max & Ali Gatie.

Guest host Sarah Silverman welcomes actor Kenan Thompson, actress Regina Hall, and a musical performance by The Killers.

Guest host Maren Morris welcomes singer-songwriter Willie Nelson, comic Megan Stalter, reality-TV personality Sutton Stracke, and a musical performance by Gabriels.

Guest host Julie Bowen welcomes actress Minnie Driver, actor Jacob Elordi, and a musical performance by Ashe.

Guest host Sean Hayes welcomes actress Awkwafina, actress Keke Palmer, and a musical performance by Daryl Hall & John Oates.

Guest host Sean Hayes welcomes actress Tracee Ellis Ross, actor Simu Liu, and a musical performance by Yola.

Guest host Stephen A. Smith welcomes rapper Snoop Dogg, Olympic sprinter Allyson Felix, and a musical performance by Nelly, Breland & Blanco Brown.

Guest host Niall Horan welcomes musician Lizzo, actor Cristo Fernandez, a musical performance by Kane Brown, and Jonas Brothers.

Guest host RuPaul welcomes comic Iliza Shlesinger, “RuPaul’s Drag Race” winner Symone, and a musical performance by Tai Verdes.

Guest host RuPaul welcomes actress Thandiwe Newton, actress Izzy G., and a musical performance by Belly.

Jimmy welcomes actress Tiffany Haddish, screenwriter David Chase, and a musical performance by Imagine Dragons.

Jimmy welcomes TV host Drew Barrymore, comic Sebastian Maniscalco, and a musical performance by Rufus Wainwright.

Jimmy welcomes former professional basketball player Shaquille O’Neal and a musical performance by Maisie Peters.

Jimmy welcomes actress Kristen Bell, actress Kirby Howell-Baptiste, plus an interview with and musical performance by Metallica.

Jimmy welcomes actress Jennifer Aniston, actor Dave Burd, and a musical performance by Bazzi.

Jimmy welcomes former professional basketball player Magic Johnson, actors Steve Lemme & Kevin Heffernan (“Tacoma FD”), and a musical performance by The Marias.

Jimmy welcomes TV host Bill Maher, actress Hannah Waddingham, and a musical performance by Carly Pearce.

Jimmy welcomes actor Curtis “50 Cent” Jackson and a musical performance by James Blake.

Jimmy welcomes actress Tiffany Haddish, TV personality Peter Weber, and a musical performance by Pharrell Williams.

Actor Anthony Anderson; author Malcolm Gladwell; Melanie Martinez performs; special appearances by Whitney Cummings, Jeff Ross, Natasha Leggero and Henry Winkler.

Chance the Rapper performs; Sen. Cory Booker (D-N.J.).

Actor Zach Galifianakis; actress Lake Bell; Fitz and the Tantrums perform.

Actor Nikolaj Coster-Waldau; actor Hugh Bonneville; Maren Morris performs.

Actors Kristen Stewart, Naomi Scott, Ella Balinska and Elizabeth Banks (“Charlie’s Angels”); actor Freddie Highmore; Cage the Elephant performs.

Actor Billy Bob Thornton (“Goliath”); actress Allison Tolman (“Emergence”); Morgan Wallen performs.

Presidential candidate Joe Biden; Cobie Smulders (“Stumptown”); James Blake performs.

Viola Davis (“How to Get Away With Murder”); Christian Slater (“Mr. Robot”); Gary Clark Jr. performs.

Author Jonathan Van Ness; actress Lucy Boynton; Jon Pardi performs.

Actor Joaquin Phoenix; actress Elizabeth Olsen; Lukas Nelson & Promise of the Real performs.

Actress Gwyneth Paltrow; Chef Evan Funke; Lunay performs.

Actor Danny DeVito; Disney CEO Robert Iger; Anderson .Paak performs with Smokey Robinson.

Actress Charlize Theron; actor Forest Whitaker; Black Pumas performs.

Director Tyler Perry; TV host Sunny Hostin; comic Gina Brillon.

Radio and TV personality Howard Stern; actor Aaron Paul.

Actress Regina King; actor Nat Wolff; a special appearance by the cast of Zombieland: Double Tap; Jimmy Eat World performs.

Actor Jeff Bridges; actress Mykal-Michelle Harris; Morris Day and Snoop Dogg perform.

Singer Elton John; writer Taika Waititi; Thom Yorke performs.

Actress Jennifer Aniston; singer-songwriter Dave Matthews; Blanco Brown performs.

Actor Paul Rudd; actress Lizzy Caplan; Tyler Childers performs.

Singer-songwriter Bruce Springsteen; singer-songwriter Alicia Keys.

Actor Benedict Cumberbatch; TV host Kelly Ripa; David Byrne performs with Brooklyn Youth Chorus.

Sen. Bernie Sanders (I-Vt.); actor Bill Murray; actress Ellie Kemper; The National performs.

Actor Eddie Murphy; actress Maya Rudolph; The Sugarhill Gang performs; rapper Kanye West.

Actor John Krasinski; actor Jason Alexander; actor Tracy Morgan; singer Paul Shaffer; Kanye West performs.

Actor Arnold Schwarzenegger; actress Luenell; actor Nick Offerman; Kesha performs.

Actor Ewan McGregor; actress Linda Hamilton; Caamp performs.

Actor Rob Lowe; actress Mackenzie Davis; comic Chris Porter.

Actor Antonio Banderas; actress Natalia Reyes; Big Boi, Sleepy Brown and CeeLo Green perform.

Actor Sterling K. Brown; Luke Combs talks and performs.

Actress Mandy Moore; actor Josh Lucas; Hootie & the Blowfish perform.

Actor Shia LaBeouf; actor Lil Rel Howery; Grace Potter performs.

Actors Kristen Bell, Idina Menzel, Josh Gad and Jonathan Groff (“Frozen II”); The Teskey Brothers perform.

Actress Kerry Washington (“American Son”); actor Noah Centineo (“Charlie’s Angels”); Florida Georgia Line performs.

Patrick Stewart (“Charlie’s Angels”) Da’Vine Joy Randolph (“Dolemite is My Name”); singer Carrie Underwood; Old Dominion performs.

Actor Ray Romano (“The Irishman”); actor Don Johnson (“Knives Out”); singer Maren Morris; Zac Brown Band performs.

Jeff Goldblum (“The World According to Jeff Goldblum”); Camila Morrone (“Mickey and the Bear”); Jeff Goldblum and the Mildred Snitzer Orchestra, feat. Sharon Van Etten perform.

Filmmaker Martin Scorsese; actor Jharrel Jerome; The Black Keys perform; cast members of “Frozen 2.”

Actor Michael Douglas; fashion designer Victoria Beckham; DJ Shadow and De La Soul perform.

Garth Brooks talks and performs; comic Mike Birbiglia.

Singer-songwriter Billie Eilish; actor Taylor Kitsch; Jessie Reyez performs.

Actor Tom Hanks; actress Jameela Jamil; Brittany Howard performs.

Actress Laura Dern; Andrew Yang, 2020 Democratic presidential hopeful; Bishop Briggs performs.

TV host James Corden; actor Mena Massoud; singer-songwriter Brad Paisley; Ozuna performs.

Actor Henry Cavill; chef Chris Shepherd; Beck performs.

Actor Tom Holland; actress Ana Gasteyer; singer Adam Levine; Angel Olsen performs.

Actor Sam Rockwell; actress Francesca Hayward; professional boxer Andy Ruiz Jr.; Sheryl Crow and Stevie Nicks perform.

Actor Jack Black; comic Michelle Wolf; Allen Stone performs.

Actor Dwayne Johnson; actor Yahya Abdul-Mateen II; She & Him perform.

Actor Kevin Hart; actress Julia Fox; Finneas performs.

Actress Awkwafina; actor Paul Walter Hauser; Mark Ronson and Anderson .Paak perform.

Jimmy welcomes Star Wars: The Rise of Skywalker director JJ Abrams and cast members Daisy Ridley, John Boyega, Oscar Isaac, Billy Dee Williams, Anthony Daniels, Naomi Ackie, Kelly Marie Tran, and Keri Russell.

Actor Adam Sandler; former professional basketball player Kevin Garnett; actress Karen Gillan.

Actress Brie Larson; actor Jamie Foxx; author Bryan Stevenson; TV personality Molly Hopkins; Yola performs.

Actress Margot Robbie; former Gov. John Kasich (R-Ohio); White Reaper performs.

Actor Riz Ahmed ("Venom"); actor Brad Garrett ("Single Parents"); Avril Lavigne performs.

Actress Lena Dunham (Girls (2012)); actor Eric Stonestreet (Modern Family (2009)); actor Riz Ahmed; Cold War Kids perform.

Actress Jada Pinkett Smith (Gotham (2014) and Girls Trip (2017)); actor Jon Bass (Baywatch (2017)); Lil Yachty performs.

Special guest star Owen Wilson from Cars 3.

Actor Chadwick Boseman (Marshall (2017)); actress Tatiana Maslany (Orphan Black (2013)); Kyle and Lil Yachty perform.

Actress Julie Bowen (Modern Family (2009)); actor Kumail Nanjiani (The Lego Ninjago Movie (2017) and Silicon Valley (2014)); Fall Out Boy perform.

Benedict Cumberbatch (Doctor Strange (2016)); Isla Fisher (Keeping Up with the Joneses (2016)). Also: Flatbush Zombies perform.

Actors Felicity Jones, Diego Luna, Donnie Yen, Riz Ahmed, Alan Tudyk, Ben Mendelsohn, and Mads Mikkelsen and director Gareth Edwards (Rogue One (2016)); A Tribe Called Quest perform.

Jessica Chastain, Patricia Arquette, Childish Gambino

Kaley Cuoco-Sweeting, Omar Epps, Steel Panther

Johnny Depp, Marion Cotillard, Kandace Springs

Danny DeVito, Abbi Jacobson, Ilana Glazer, Bad Suns

Eric Stonestreet, Stephen Amell, Logic

Ewan McGregor, Lea Michele, Tess Henley

Edward Norton, Al Michaels, The Decemberists

Channing Tatum, J.J. Watt, ZZ Top

Kevin Costner, Eddie Redmayne, Jamie Cullum

David Beckham, Elle Macpherson, Vance Joy

Kerry Washington, Dave Salmoni, Ne-Yo

Guests Rob Gronkowski, Eva Longoria. Weezer and ZZ Top perform as WeeZ Top on the inaugural "Mash Up Mondays"

Mila Kunis, Bob Odenkirk, Charli XCX

Lauren Cohan, Interview and Music from Jeff Bridges

Magic Johnson, Scott Foley, Magic!

Bill O'Reilly, Kelly Osbourne, Morris Day & The Time with Haim

Anna Faris, Jeff Van Gundy & Mark Jackson, Annie Lennox

David Spade, Randall Park, The Band Perry

Keira Knightley, Tony Goldwyn, Incubus

Benedict Cumberbatch, Stana Katic, Chris Soules, Aloe Blacc & Blackstreet

Kristen Bell, Chris Elliott, Big Sean

Neil Patrick Harris, Gillian Jacobs, Rascal Flatts

Kelly Ripa, Joshua Malina, Gorgon City feat. Jennifer Hudson

Kobe Bryant, Chrissy Teigen, Kenny G & Warren G

Will Smith, Elizabeth Henstridge, Sam Hunt

Viola Davis, Richard Madden, Common

Starring Bridgit Mendler (NBC's Undateable); comedian Beth Stelling and Chef Gordon Ramsay who tested Jimmy's palate by giving him a blind taste test.

Vince Vaughn, Mike Tyson

Naomi Watts, Reggie Miller, Carly Rae Jepsen

Bette Midler, the next Bachelorette, Afghan Whigs

Jennifer Lopez, Keith Urban, Harry Connick Jr., Ryan Seacrest (American Idol (2002)); Eric André (Man Seeking Woman (2015)); Keith Urban performs.

Liam Neeson, Octavia Spencer, AWOLNATION

President Barack Obama; Sean Penn (The Gunman (2015)). Also: "Earth Wind and Fire" perform.

Kevin Hart, Brad Paisley

Julia Louis-Dreyfus, Robert Rodriguez, Spoon

Tony Romo, James Bay

Bill Murray, The cast of The Walking Dead

Kanye West, Willie Nelson

Comic Kathy Griffin; sports broadcasters Chris Fowler and Kirk Herbstreit; Priory performs.

Zooey Deschanel, Guillermo Diaz, Charlie Wilson

Vin Diesel, Music from Van Halen

Actor Michael Keaton; TV host Megyn Kelly; George Ezra performs.

Comic Mel Brooks; actress Christine Baranski; Jenny Lewis performs.

Actress Anne Hathaway; reality-TV star Chris Soules; Heart performs.

Actor Matt LeBlanc; actress Hayley Atwell; chef Jamie Oliver.

TV-show host Bill Maher; actor Nick Kroll; The Lone Bellow performs.

Actor Joaquin Phoenix; comic Larry Wilmore; Frankie Ballard performs.

Actress Jessica Chastain; actress Patricia Arquette; Childish Gambino performs.

Actress Kaley Cuoco-Sweeting; actor Omar Epps; Steel Panther performs.

Actor Johnny Depp; actress Marion Cotillard; Kandace Springs performs.

Actresses Abbi Jacobson and Ilana Glazer; Bad Suns perform.

Actor Eric Stonestreet; actor Stephen Amell.

Actor Ewan McGregor; actress Lea Michele; Tess Henley performs.

Actor Edward Norton; sportscaster Al Michaels; The Decemberists perform.

Actor Channing Tatum; professional football player J.J. Watt; ZZ Top performs.

Actor Kevin Costner; actor Eddie Redmayne; Jamie Cullum performs.

Former professional soccer player David Beckham; model Elle Macpherson; Vance Joy performs.

Actress Kerry Washington; animal handler Dave Salmoni; Ne-Yo performs.

TV host Bill O'Reilly; TV personality Kelly Osbourne; Mashup Monday features a performance from "Morris Day and the HAIM" (Morris Day and The Time and HAIM).

Actress Anna Faris; sportscasters Jeff Van Gundy and Mark Jackson; Annie Lennox performs.

Sam Smith performs.

Actress Keira Knightley; Incubus performs.

Mashup Monday features a performance from "Aloe Blaccstreet" (Aloe Blacc and Blackstreet).

Actress Kristen Bell; actor Chris Elliott; Big Sean performs.

Actor Neil Patrick Harris; actress Gillian Jacobs; Rascal Flatts perform.

TV host Kelly Ripa; actor Joshua Malina; Gorgon City performs with Jennifer Hudson.

A post-Oscar celebration; actor John Travolta.

Professional basketball player Kobe Bryant.

Actor Will Forte; actress Bella Thorne; Prince Royce performs.

Actor Will Forte; actress Elizabeth Henstridge; Sam Hunt performs.

Actress Viola Davis; actor Richard Madden.

Actress Cate Blanchett; actor Ryan Phillippe; Joywave performs.

Chef Gordon Ramsay; actress Bridgit Mendler; comic Beth Stelling.

Actor Vince Vaughn; retired professional boxer Mike Tyson; Drew Holcomb and The Neighbors perform.

Actress Naomi Watts; Carly Rae Jepsen performs.

Actress Bette Midler; the latest woman to be featured on "The Bachelorette"; The Afghan Whigs perform.

"American Idol" judges Jennifer Lopez, Keith Urban and Harry Connick Jr. and host Ryan Seacrest; actor Eric André; Keith Urban performs.

Actor Liam Neeson; actress Octavia Spencer; AWOLNATION performs.

Actor Sean Penn; Earth, Wind & Fire performs.

Actor Kevin Hart; Brad Paisley performs.

Actress Julia Louis- Dreyfus; filmmaker Robert Rodriguez; Spoon performs.

Actor Bill Murray; "The Walking Dead" cast members; The Weeknd performs.

Singer Willie Nelson.

Clinton Foundation Vice Chair Chelsea Clinton; actor Adam Carolla; Zac Brown Band performs.

Actress Maisie Williams; Saint Motel performs.

Actor Matthew Perry; professional wrestler John Cena; For King & Country performs.

Actress Zooey Deschanel; actor Guillermo Diaz; Charlie Wilson performs.

Actor Vin Diesel; Van Halen performs.

Actor Kurt Russell; comic Jeff Ross; Van Halen performs.

Actor Dwayne Johnson; singer Rihanna; Death Cab for Cutie performs.

Actor Jason Statham; Brian Wilson performs.

Actors Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Chris Evans, Scarlett Johansson and Jeremy Renner ("Avengers: Age of Ultron").

Actress Cobie Smulders; barbecue chef Aaron Franklin; Chic performs.

Actor Tim Allen; Drew Holcomb and The Neighbors performs.

Actress Juliette Lewis; Jamie Foxx performs.

Actor John Stamos; actor Michael B. Jordan; Matt & Kim perform.

Actress Courteney Cox; chef Steve Martorano; Alabama Shakes perform.

Dr. Phil McGraw; professional boxer Manny Pacquiao; Chet Faker performs.

Actors Anthony Anderson, Laurence Fishburne and Tracee Ellis Ross; Earth, Wind & Fire perform with Chicago.

Actor Kevin Spacey; actor Ioan Gruffudd; Stromae performs.

Tim McGraw performs; actress Patricia Heaton.

Actor Billy Crystal; animal handler Dave Salmoni; Modest Mouse performs.

Reality-TV star Kim Kardashian West; actor Michael Sheen; YelaWolf performs with Travis Barker.

TV host Ryan Seacrest; actress Brittany Snow; a Mash Up Monday performance with "REO SpeedDragons" (Imagine Dragons and REO Speedwagon).

Actress Julie Bowen; actor Adam Devine; Imagine Dragons perform.

Musician Adam Levine; actor Nicholas Hoult; Maroon 5 performs.

Actress Hailee Steinfeld; Brandon Flowers performs.

Actress Elizabeth Banks; comic Marc Maron; Earl Sweatshirt featuring BadBadNotGood performs.

Comic Amy Schumer; singer Chris "Ludacris" Bridges; José González performs.

Actor Paul Giamatti; author Bob Pflugfelder.

Mariah Carey performs; actress Alexandra Daddario.

Actor George Clooney; "The Bachelorette" castoff.

Actor Ray Liotta; Zedd performs.

Actress Jennifer Connelly; director Judd Apatow; Twenty One Pilots perform.

Actor Jeremy Piven; author Adam Carolla; Hozier performs.

Scripp's National Spelling Bee champions Vanya Shivashankar and Gokul Venkatachalam; Hiatus Kiyote performs.

Actor Joseph Gordon-Levitt; actress Emmanuelle Chriqui; Wiz Khalifa performs.

Actor Chris Pratt; actress Abby Elliott; Fetty Wap performs.

Actor Kit Harington; TV host Chris Gethard; Dwight Yoakam performs.

Actress Zoe Saldana; Tyler the Creator performs.

Actress Viola Davis; actor Adam Scott; Wale performs.

Actor Bill Hader; actor Shameik Moore.

Actor Jack Black; actor Jeffrey Tambor; Fifth Harmony and Kid Ink perform.

NBA Finals MVP Andre Iguodala; comedian Chris Tucker; Mark Feuerstein ("Larry Gaye: Renegade Male Flight Attendant"). Also: Robert DeLong performs.

Jon Hamm ("Minions"); Lizzy Caplan ("Masters of Sex"); comedian Jesse Elias. Also: Sheila E. sits in with Cleto and the Cletones.

Comedian Wanda Sykes; Jeffrey Dean Morgan ("Extant"). Also: A Thousand Horses perform.

Jada Pinkett Smith ("Magic Mike XXL"); Jai Courtney ("Terminator Genisys"). Also: Nate Ruess performs.

Emilia Clarke ("Terminator Genisys"); Vanessa Bayer ("Trainwreck"). Also: Miguel performs.

Comedian Kathy Griffin; Rob Corddry ("Ballers"). Also: Everclear perform.

Liev Schreiber ("Ray Donovan"); mixed martial artist Ronda Rousey. Also: Vince Staples performs.

Andy Samberg ("7 Days in Hell"); quarterback Russell Wilson. Also: Butch Walker performs.

Charlize Theron ("Dark Places"); Nat Wolff ("Paper Towns"). Also: Tori Kelly performs.

Denis Leary ("Sex&Drugs&Rock&Roll"); soccer player Alex Morgan. Also: Big Talk perform.

Ed Helms ("Vacation"); Brie Larson ("Trainwreck"). Also: Joss Stone performs.

Colin Farrell ("True Detective"). Also: Meghan Trainor performs.

Owen Wilson ("No Escape"); Kaitlyn Bristowe ("The Bachelorette"). Also: Juanes performs.

Armie Hammer ("The Man From U.N.C.L.E."); Natasha Leggero ("Another Period").

Christina Applegate ("Vacation"); Rick Springfield ("Ricki and the Flash"). Also: Tyler, the Creator performs.

Jason Bateman, Nicole Richie

Actress Halle Berry; Josh Groban performs.

Actor Johnny Knoxville; professional basketball player Steph Curry; Kelly Clarkson performs.

Actress Queen Latifah; tennis legend John McEnroe; Mumford & Sons perform.

Actor Topher Grace; actress Lily Tomlin.

Actress Sofía Vergara; journalist David Muir; Kacey Musgraves performs.

Actor John Stamos; journalist Jake Tapper; Cold War Kids perform.

Actor Tobey Maguire; NASCAR driver Dale Earnhardt Jr.; Kip Moore performs.

Actor David Spade; professional basketball player Russell Westbrook; A$AP Rocky performs.

From "Cougar Town", actress Courteney Cox; “The Bachelor” Juan Pablo Galavis; musical guest Johnathan Rice.

Actress Amy Adams; actress Margot Robbie; musical guests Xolie Morra & The Strange Kind.

From "Modern Family", actress Sofia Vergara; actress Emmy Rossum; musical guest Yuna.

Actress Kristen Wiig; comedian Nick Kroll; musical guests Lord Huron.

From "Jack Ryan: Shadow Recruit", actor Kevin Costner; from "American Idol", judge Harry Connick Jr.; musical guest Michael Kiwanuka.

From "Episodes", actor Matt LeBlanc; from "12 Years a Slave", actress Lupita Nyong'o; musical guests The Fray.

From "August Osage County", actress Meryl Streep; from "HitRECord on TV!", host Joseph Gordon-Levitt; musical guest Jonny Lang.

From "Jack Ryan: Shadow Recruit", actor Chris Pine; from "Shark Tank", participant Kevin O'Leary; musical guest Gregory Porter.

From "NCIS: Los Angeles", actor and rapper LL Cool J; from "Agents of S.H.I.E.L.D.", actress Chloe Bennet; musical guests Vampire Weekend.

From "Rake", actor Greg Kinnear; from "Jack Ryan: Shadow Recruit", director and actor Kenneth Branagh; musical guests Young the Giant.

From "Lizzie Borden", actress Christina Ricci; from "New Girl", actor Jake Johnson; musical guest Danny Brown.

From "Keeping Up with the Kardashians", reality star Kim Kardashian; from "The Bachelor: Sean and Catherine's Wedding", Sean Lowe & Catherine Giudici; musical guest Jason Derulo.

From "NCIS: Los Angeles", actor Chris O'Donnell; player for the NBA Indiana Pacers, Paul George; musical guests The Airborne Toxic Event.

Actor Morgan Freeman; from "Mom", actress Anna Faris; musical guests Mötley Crüe.

From "At Middleton", actor Andy García; chef Norman Van Aken; musical guests Broken Bells.

From "That Awkward Moment", actor Zac Efron; from "The Lego Movie", actress Alison Brie; musical guest Sara Bareilles.

Sharon Osbourne from "The Talk"; actors Shailene Woodley and Theo James ("Divergent"); Zedd performs.

Actor Barkhad Abdi ("Captain Phillips"); Dr. Mehmet Oz; The Lone Bellow performs.

Actor Ashton Kutcher ("Two and a Half Men"); actress Sarah Paulson ("12 Years a Slave"); The Head and the Heart perform.

The cast of George Clooney's The Monuments Men

Actors Ethan Hawke & Julie Delpy; actor Joel Kinnaman; Eric Church performs.

Seattle Seahawks Richard Sherman & Malcolm Smith; actor Gary Oldman; music from Crosses †††

Actor Nathan Fillion; actor Abbie Cornish; Naughty Boy and Sam Smith perform.

Actor Kevin Hart; actor Alex Pettyfer; Sage the Gemini performs.

Will Arnett; Sports Illustrated Swimsuit Issue Cover Models Nina Agdal, Lily Aldridge and Chrissy Teigen; Music from Silversun Pickups.

Author Bill O'Reilly; actor Kit Harington; Phantogram performs.

Actor Matthew McConaughey; actress June Squibb; Switchfoot performs.

Actor Jonah Hill; TV personalities Willie Robertson and Korie Robertson; New Politics performs.

Actor Liam Neeson; animal expert Dave Salmoni; Josh Groban performs.

Actor Joel McHale; actor Ansel Elgort; music from Benmont Tench.

TV show host Ellen DeGeneres; director Tom Ford; Sky Ferreira performs.

Actress Kerry Washington; TV show host Michael Strahan; Juicy J and Wiz Khalifa perform.

Toronto Mayor Rob Ford; The Muppets' The Great Gonzo.

Actress Jane Lynch; actor Omar Epps; Musical guest Fitz & The Tantrums.

Actor Ricky Gervais; Kongos performs.

Actor Aaron Paul; actress Bellamy Young; Music from Jetta.

Jimmy Kimmel takes the show to Austin, Texas. Actor Seth Rogen ("Neighbors"), rapper-actor Snoop Dogg (1st Annual Wellness Retreat); musical guest White Denim.

Actress Rosario Dawson ("Cesar Chavez"); Gov. Rick Perry; Music from Aloe Blacc; Jimmie Vaughn sits in with the house band.

Actor Robert Duvall ("A Night In Old Mexico"); celebrity chef Rachael Ray ("The Rachael Ray Show"); musical guest Damon Albarn; musical guest Johnny Winter will sit in with house band Cleto and the Cletones.

Musical guest Lady Gaga; actress Darby Stanchfield ("Scandal"); musical guest The Preatures.

Rapper Lil Wayne; panelist and musical guest Willie Nelson; Los Lonely Boys sits in with Cleto and the Cletones.

Actress Uma Thurman; actor Jai Courtney; Amos Lee performs.

Actress Ashley Judd; TV host Howie Mandel; Sam Smith performs.

Actor Jeremy Piven; actress Zoe Kravitz; YG performs.

Actor Don Cheadle; actor Tony Goldwyn; Enrique Iglesias performs.

Actress Jennifer Connelly; actor Rohan Chand; Sharon Jones & the Dap-Kings perform.

Actress Nicole Kidman; actress Alyson Hannigan; Jerrod Niemann performs.

Actress Julia Louis-Dreyfus; actor Michael Peña; London Grammar performs.

Actor Jason Bateman; actress Katie Lowes; John Legend performs.

Actress Mindy Kaling; comic Jim Jefferies; Dan Croll performs.

President Bill Clinton; Manny Pacquiao performs.

Actress Emma Stone; actor Jeff Perry; Schoolboy Q performs.

Actor Seth MacFarlane; actor Paul Bettany; Sam Smith performs; the 2014 ESPYS host Drake.

"Scandal" creator Shonda Rhimes discusses the season three finale; secrets from the "Scandal" cast and a previously unseen blooper reel; Kimmel's Spanish-language spinoff, "Escandalo."

Model Kate Upton; actor Cole Hauser; Neon Trees performs.

Actor Seth MacFarlane; actor Paul Bettany; Sam Smith performs.

Actor Tim Allen; actress Ginnifer Goodwin; Foster the People perform.

Actress Julie Bowen; comic Dave Attell; Cut Copy performs.

Actor Tim Allen; actress Ginnifer Goodwin; Foster the People perform.

Actors Eric Stonestreet and Jesse Tyler Ferguson; TV host Robin Roberts.

Actress Jennifer Lopez; actress Elizabeth moss; Sleepy Man Banjo Boys perform.

Actors Eric Stonestreet and Jesse Tyler Ferguson; reporter Robin Roberts.

Comic Kathy Griffin; actor Tony Hale; Franz Ferdinand performs.

Actress Sandra Oh; "Science Bob" Pflugfelder; Boy George performs.

Actress Sally Field; actress Julia Roberts; Future Islands performs.