The Tonight Show Starring Jimmy Fallon - Season 1 / Year 2014

Jimmy Fallon premieres as the new host of The Tonight Show, welcoming his first guest Will Smith and a performance from U2.

Jimmy Fallon has fellow NBC alums Jerry Seinfeld and Kristen Wiig, as well as a performance from Lady Gaga.

Jimmy Fallon has American Hustle's Bradley Cooper and a performance from Tim McGraw on Wednesday's Tonight Show.

First Lady Michelle Obama and Will Ferrell stop by The Tonight Show, as well as a performance by Arcade Fire.

Jimmy Fallon teams up with guest Justin Timberlake for Friday's Tonight Show.

Jimmy welcomes Reese Witherspoon, Fred Armisen and Rick Ross with The Roots.

Jimmy welcomes Paul Rudd, Shaquille O'Neal and Hannibal Buress to The Tonight Show.

Jimmy welcomes Drew Barrymore, Adam Sandler and Dierks Bentley to The Tonight Show.

Guests include Denzel Washington, Shaun White, Sara Bareilles.

Guests include Cameron Diaz, Ralph Fiennes, Mario Batali.

Guests include actress Tina Fey, singer Randy Newman, who also performs.

Guests include Chelsea Handler, Lea Michele and musical guest Lea Michele.

Guests include Annette Bening, Norman Reedus and musical guest The Avett Brothers.

Jimmy has Liam Neeson, Lindsay Lohan, and a musical performance by Bad Things

Guests include Stephen Colbert, Keri Russell and musical guest Broken Bells.

Guests include Kristen Bell, Steve Harvey and musical guest Demi Lovato.

Guests include Tyler Perry, Billy Eichner and musical guest Juanes with The Roots.

Guests include Shailene Woodley, Artie Lange and musical guest Beck.

Guests include Julianna Margulies, Patton Oswalt and Nate Bargatze. 

Guests include James Franco, Andy Cohen and musical guest Jake Bugg.

Guests include James Spader, Kermit the Frog and musical guest Black 47.

Guests include Lena Dunham, Hugh Dancy and musical guest Foster the People.

Guests include Greg Kinnear, Emilia Clarke, Frank Castronovo and Frank Falcinelli. 

Guests include Billy Joel, Chelsea Clinton and musical guest Billy Joel.

Guests include Kevin Bacon, Jeff Musial and musical guest Ty Dolla $ign with The Roots. Anne Wilson sits-in with The Roots. 

Guests include Arnold Schwarzenegger, Carson Daly and musical guest Vampire Weekend. 

Guests include Jude Law, Shakira and musical guest Shakira.

Guests include Bill Cosby and Joby Ogwyn. Nathan East sits-in with The Roots.

Guests include Russell Crowe, Joan Rivers and musical guest The National. 

Guests include January Jones, Josh Holloway and musical guest Passenger. 

Guests include Chris Evans and musical guest Rick Jay.

Guests include Samuel L. Jackson, Minnie Driver and musical guest Pitbull. 

Guests include Denis Leary, Cat Deeley and musical guest Nickel Creek. 

Guests include Daniel Radcliffe, Cedric the Entertainer and musical guest Travie McCoy.

Guests include Bill O'Reilly, Anthony Mackie and musical guest Sky Ferreira.

Guests include Colin Firth, Chloe Grace Moretz and musical guest Nas featuring Q-Tip. John Oates sits-in with The Roots.

Guests include Anne Hathaway, Marlon Wayans. Also: Cat Stevens performs.

Guests include Jennifer Garner, Dave Grohl and Krist Novoselic. Also: Stevie Nicks performs with The Roots.

Guests include Kevin Costner, Danica McKellar. Also: Alan Cumming and the cast of Broadway's "Cabaret" perform. Philip Bailey sits in with The Roots.

Guests include Nicolas Cage, Emily VanCamp. Also: KISS perform.

Guests include Brian Williams, Christina Hendricks, chef Ilan Hall.

Guests include David Duchovny, John Oliver and musical guest Rita Ora. 

Guests include Cameron Diaz, Jim Gaffigan and musical guest Future featuring Pusha T with The Roots.

Guests include Dr. Phil McGraw, James Van Der Beek. Also: Courtney Barnett performs. Steven Tyler & Joe Perry sit in with The Roots.

Guests include Jamie Foxx, Alan Cumming. Also: Alicia Keys & Kendrick Lamar perform.

Guests include Emma Stone, Robinson Cano and musical guest Keith Urban. 

Guests include Diane Keaton, Dane DeHaan and musical guest David Byrne. Daley sits-in with The Roots. 

Guests include David Spade, Sophia Bush and musical guest The Both.

Guests include Andrew Garfield, Mary Lynn Rajskub and musical guest Chvrches.

Guests include actor Kevin Spacey and comedian Lewis Black.

Guests include Bryan Cranston, Brie Larson, Kevin Delaney. Latimore sits in with The Roots.

Guests include Seth Rogen, Matt Bomer. Also: Coldplay perform.

Guests include Zac Efron, Guy Fieri, Jadeveon Clowney. Also: Sarah McLachlan performs.

Guests include Michael Fassbender, Zoe Saldana. Also: "Fallonventions".

Guests include James McAvoy, Amy Schumer and musical guest Tune-Yards.

Guests include comic Louis C.K., musicians Neil Young and Jack White. Also: Neil Young performs.

Guests include singer Dolly Parton, actor Taylor Kitsch. Also: Dolly Parton performs.

Guests include actress Maya Rudolph, actor Robert Duvall. Also: Lily Allen performs.

Guests include actress Jennifer Lawrence, actor Craig Robinson. Also: the cast of "A Gentleman's Guide to Love and Murder" perform.

Guests include actress Drew Barrymore, actor Giovanni Ribisi. Also: Elbow perform.

Guests include actor Liam Neeson, actor Terry Crews. Also: singer Conor Oberst performs.

Guests include actress Charlize Theron, actor Josh Hartnett. Also: The Roots perform.

Guests include actor Hugh Jackman, musician Jimmy Page. Also: musician Barry Gibb performs. Josh Kaufman, the winner of "The Voice", sits in with the Roots.

Guests include actress Amanda Seyfried, actor Will Ferrell, musician Chad Smith. Also: Red Hot Chili Peppers perform.

Guests include actor Seth MacFarlane, actress Thandie Newton. Also: Rascal Flatts perform.

Guests include comedian Ricky Gervais, actor Ansel Elgort. Also: musician Miranda Lambert performs.

Guests include actor Jonah Hill, politician Rahm Emanuel. Also: Soundgarden perform.

Guests include actor Tom Cruise, TV personalities Kendall & Kylie Jenner. Also: musician Chrissie Hynde performs.

Guests include comedian Mike Myers, astrophysicist Neil deGrasse Tyson. Also: musician Damon Albarn performs.

Guests include actor Channing Tatum, technology journalist Joshua Topolsky. Also: comedian Julian McCullough performs.

Guests include actor Clint Eastwood, musician Jack White. Also: Jack White performs.

Guests include actor Jim Carrey & Jeff Daniels, actress Taylor Schilling. Also: musician Ed Sheeran performs.

Guests include author Barbara Walters, TV personalities June Shannon (Mama June) and Alana Thompson (Honey Boo Boo). Also: comedian Iliza Shlesinger performs.

Guests include comedian Chris Rock and musical guest Kacey Musgraves.

Guests include comedian Dave Chappelle and musical guest Ice-T & Body Count.

Guests include singer Jennifer Lopez, actor Keenen Ivory Wayans. Also: Jennifer Lopez performs.

Guests include comedian Kevin Hart, musician Jimmy Buffett. Also: Jimmy Buffett performs.

Guests include Rosario Dawson, Jeff Musial. Also: fun. perform.

Guests include George Lopez, Pitbull. Also: Pitbull performs.