Jimmy Fallon

'Ew!' is for sure one of Jimmy Fallon's most entertaining bits. Even with all the game-heavy fair permeating his 'Tonight Show,' one can never really get tired of seeing Fallon and the evening's celebrity guests pulling off some sassy-teenage-girl realness. However, this time around, Fallon took things up a notch by transforming the popular sketch series into a music video with will.i.am.

Jennifer Garner is extremely good at Catchphrase. The 'Men, Women & Children' actress hit 'The Tonight Show' last night to chat about a variety of things -- from her new film to, oops, that one time her entire family got head lice -- but she really hit her stride when it was time to play Catchphrase with host Jimmy Fallon.

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

We've all got jobs we'd rather not remember -- that summer working the French fry bin at McDonald's, that bad internship at our mom's company -- and even mega Hollywood success doesn't prohibit a superstar like Liam Neeson from feeling that exact same pain. The actor has had bad, strange jobs, too, but nothing that could quite compare to his very first movie role.

It's Jimmy Fallon's Lip Sync Battle - 'The Voice' edition!

On her new album, 'Partners,' Barbra Streisand teams up with some of the greatest voices in music. Her latest duet "partner"? Jimmy Fallon!

Dear Hugh Jackman, you know that 'The Tonight Show' is on television, right? More specifically, it's on live television in front of a studio audience, which means hundreds of people are watching the show in person, with millions more watching at home. In short, it's a very bad place to decide to cheat at a game, particularly if that game involves standing on an oversized pool table in front of said audience.

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.

Most of the time, Jimmy Fallon confines the 'Tonight Show' games to just one or two participants, enough to keep things clean and easy to follow, with plenty of attention for his various guests. On last night's edition, however, the host decided to pump things up just a bit with an all-star take on 'Family Feud' that crowded the show's stage with a metric ton of Hollywood talent.

Beloved teen angst fest (and starting point for such big time talents as Claire Danes and Jared Leto) 'My So-Called Life' might have been cut short -- like, way short, the series was cancelled after only 19 episodes -- but that hasn't stopped it from enduring as a modern classic that kids still relate to (and, hey, adults do, too). The series turned twenty years old just a few weeks ago, and star Danes didn't let the day go by on unmarked. Well, sort of.

Just when we thought we couldn't be any more obsessed with Meghan Trainor's 'All About That Bass,' Jimmy Fallon had to come along and make it positively epic.

See Miley Cyrus, Lea Michele, Jimmy Fallon, Demi Lovato + more celebs' audition tapes before they were famous.