Jimmy Fallon

Here is what you get when Jimmy Fallon, Will Ferrell, and Kevin Hart have a lip sync battle. Oh, and Drew Barrymore pops in for some fun too!

Forget the Grammys. Jimmy Fallon's epic cover of 'We Are the Champions' might be the most star-studded musical event of the year!

Jimmy Fallon hits another home run with this wacky take on a teen girl talk show!

'Tonight Show' host Jimmy Fallon translates current rap and hip hop songs into Broadway versions. But the difference between an okay "Broadway covers" sketch and a great one is how much Fallon and his chosen guest sell it.

Like many of us, 'Tonight Show' host Jimmy Fallon appears to believe that Hollywood superstar Bradley Cooper can do anything -- and, based on his impressive resume of stage and screen roles and accolades, the guy can't be too off the mark. But there is one that Cooper isn't so great at: music. It's sort of surprising, really, and even the overly solicitous Fallon was a little dumbstruck when Cooper admitted that his musical talents are minimal on last night's show.

It looks like Christmas came early for the One Direction fandom!

Jimmy Fallon and Justin Timberlake are pals. Like, serious pals. These guys make Apple commercials together, which is a true mark of friendship if there ever was one. On last night's 'Tonight Show,' the duo decided to team up for another round of, well, just whatever the heck it is these two do together.

If you're going to have only one Facebook friend, it might as well be Facebook creator Mark Zuckerberg. While it's unclear how many stars have Facebook profiles lovingly crafted by the Zuck himself, Andy Samberg has one, and he shared the story of its creation on last night's 'The Tonight Show' with a gobsmacked Jimmy Fallon. We're jealous.

Last night (Sept. 18), Robin Williams' close friend Billy Crystal shared fond memories of the late star with Jimmy Fallon.

Last night (Sept. 9) on 'The Tonight Show,' Britney Spears stopped by to promote her new lingerie line ... and to let Jimmy Fallon sign her up for Tinder.