Jimmy Fallon

It's safe to say that Diane Keaton doesn't understand the mechanics of beer pong, or perhaps she does and just decided to troll 'Tonight Show' host Jimmy Fallon -- hard -- with a spin on one of his very favorite games. After all, Keaton already spent her visit to the show to lecture Fallon on how to make his self-professed "beady" eyes look more alive, so she's clearly not opposed to som

Late Thursday night, Jimmy Fallon and a few friends reportedly escaped being involved in a nasty brawl at a New York City bar located in the city's East Village area.

'Tonight Show' host Jimmy Fallon impersonates Tom Petty while performing with Stevie Nicks.

Take a seat, Anne Hathaway haters aka “Hathahaters.” The Oscar-winning actress totally won our hearts when she appeared on 'The Tonight Show Starring Jimmy Fallon,' performing Broadway versions of rap hits with the host, who tickled the ivories and backed her up.

With his unexpected guests and hilarious skits, Jimmy Fallon consistently raises the bar of the late night game. Last night, the comedian outdid himself when he surprised viewers with an appearance by Sarah Palin.

Important question: Who among you knew that 'Tonight Show' host and all-around funny guy Jimmy Fallon was also a skilled harmonica player? Somewhat related: Who among you knew that Russell Crowe has a background in fronting badly-named rock bands?

Billy Joel and Jimmy Fallon sang 'The Lion Sleeps Tonight' with the help of an iPad app.

Apparently, being 'Tonight Show' host means that you can get access to a lot of wild stuff, like private phone chats (with split-screen video, most improbably) between President Obama and Russian President Vladimir Putin about the situation in Crimea. At least, that's what host Jimmy Fallon wants us to believe.

Let it never be said that Jon Hamm doesn't like to have a good time. The 'Mad Men' star might be known for his hard-nosed role on the uber-dramatic AMC series, but he likes to stir up mirth in his off-time, from 'SNL' hosting and pop-in appearances to helping 'Tonight Show' host Jimmy Fallon with some gags for his show. In keeping with the latter, Fallon and Hamm took to the Top of the Rock (on to

There's little question that Jimmy Fallon loves rapping, fake music videos, invented sporting events, and asking his 'Tonight Show' guests to help him combine all of the above into its own unique blast of '80s-tinged goodness and oddly catchy lyrics (if you count a single line as "lyrics"). That doesn't seem to be abating in his second week as host on the venerable late show, as basket-b

'NBC News' anchor Brian Williams knows how to poke fun at himself. After all, the father of 'Girls' star Allison Williams has hosted 'SNL' and parodied himself on '30 Rock' -- but this time, 'Tonight Show' host Jimmy Fallon did it for him, piecing together a ridiculously hilarious video that makes it seem as if the anchor is rapping the 1979 hit, 'Rapper's

Last night, Jimmy Fallon officially ushered in a new era of 'The Tonight Show' and, besides a move to New York City, already made the show his own. Can you imagine Jay Leno ever doing The Humpty Dance in a "The Evolution of Hip-Hop Dancing"?