Jimmy Fallon

Saturday it's on! Wisconsin vs. Kentucky and Michigan State vs. Duke. Who will win it all is anybody's guess, but the Jimmy Fallon Puppy Predictors know. Watch this video

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).

Kelly Clarkson and Jimmy Fallon are pretty much the best karaoke duo EVER.

Oh baby, baby, Christina Aguilera nailed a Britney impression on The Tonight Show with Jimmy Fallon last night.

Last night, Taylor Swift appeared on 'The Tonight Show Starring Jimmy Fallon' then was forced to draw the host without looking and dance on a Jumbotron.

The Tonight Show host Jimmy Fallon might be prone to brief spats of name-dropping – hey, the guy knows a lot of people! – but on last night’s show, it was at least somewhat appropriate. Still recovering from Sunday night’s SNL 40 super special, Fallon was eager to share his recollections of the evening with his studio audience (and also Questlove, who was actually there, but who charitably recounted the whole evening with the giddy Fallon). There were a lot of people there!

The SNL 40th Anniversary Special started off like you thought it might with two of its most popular modern day partners, Jimmy Fallon and Justin Timberlake. The two took the stage for the show's cold open and sang, danced and rapped their way through 40 years of SNL history (with a few special guests, of course).

Thank goodness for iPad apps. On last night's 'Tonight Show,' host Jimmy Fallon -- who grows more California by the minute, as the show has temporarily relocated to the West Coast -- and guest Will Smith decided to finally give the people what they want: rapping. Well, sort of.

Jimmy Fallon reunited the cast of "Saved By The Bell" for an epic skit that took place at Bayside High.

For the next week, 'The Tonight Show' is chilling in sunny Los Angeles -- the frigid cold of New York City, quite understandably, finally got to the crew, and also this has been planned for months -- and host Jimmy Fallon has spared no creative expense when it comes to making his temporarily Hollywood-based show look California cool. And we all know there's only one way to really drive home CA styling: 'The Fresh Prince of Bel-Air.'