Jimmy Fallon

Jimmy Fallon got some help from The Roots and the star-studded cast of 'Sing' for an a cappella version of 'Wonderful Christmastime.'

'I can't wait to get on the road again,' Grande told Jimmy Fallon on 'The Tonight Show.'

Barb from Netflix show 'Stranger Things' returned from The Upside-Down in a 'Tonight Show' spoof starring the real kids from the cast.

Weebles may not fall over, but in May, Trainor went DOWN.

Following in the footsteps of his former SNL pals Tina Fey and Amy Poehler, Jimmy Fallon will host the 2017 Golden Globes — which should also provide a respite from the antics of Ricky Gervais, for those of you who were growing a little weary of his schtick. The big question now is whether or not Fallon can make it through the awards ceremony without laughing.

Ari and Jimmy demonstrate their comedic chemistry once again, lip syncing to a string of old and new favorites.

When you’re out promoting a movie, you’re often asked to do a lot of things, most of them pretty silly. With the amount of press the cast of Star Wars: The Force Awakens was being asked to do, there were asked to do a lot of silly things, none perhaps as silly as going on The Tonight Show Starring Jimmy Fallon and singing a medley of Star Wars music a cappella. But the entire cast — including Harrison Ford! — actually commits, and it actually turns out to pretty fun.

"I have been waiting my whole life to do this," the singer said — not of performing a song, but playing a ridiculous game with Jimmy Fallon.

Because who better to teach you about rap than two nerdy white guys?

Tonight Show host and comedian Jimmy Fallon is currently in the hospital while recovering from surgery today (June 26).

Last weekend, Dwayne “The Rock” Johnson hosted SNL and did an amazing job. So, this guy can walk down a street with a giant gatling gun in Furious 7 and also be hilarious? It's almost not fair. But, The Rock's range doesn't stop there. Last night, he appeared on the debut episode of Lip Sync Battle, a spinoff of sorts from the popular segment on Jimmy Fallon's Tonight Show, and of course he won. By lip syncing Taylor Swift’s “Shake It Off”. This you gotta see.

Ariana Grande has one set of pipes, but the "One Last Time singer shows just how well she uses them when she impersonated Celine Dion on The Tonight Show Starring Jimmy Fallon last night (March 20).