jimmy fallon

Lorde talked with Jimmy Fallon about posing as Taylor Swift's manager. She also performed 'Yellow Flicker Beat.'

Somehow, 'Foxcatcher' star Channing Tatum is the very first male guest to participate in a rousing round of Jimmy Fallon's 'Box of Lies' on 'The Tonight Show.' Fallon's results have been mixed -- the guy isn't very good at lying, especially when a giggly celebrity makes googley eyes at him in an attempt to throw him off his game -- but he has been getting better in recent weeks.

Is there anything Matthew McConaughey can't do? Or, more precisely, is there anything that he can't do excellently? Turns out, the Oscar winner just might have a weak spot, and although it's not a big one, it's one that 'Tonight Show' host Jimmy Fallon gleefully exploited for his own edification on last night's show.

Celebrity impressions -- funny. Celebrities doing impressions of other celebrities -- really funny. Kevin Spacey and Jimmy Fallon doing Halloween-themed celebritiy impressions -- PERFECTION.

Harry Potter fans your love for Daniel Radcliffe is about to taken to the next level when you watch him rap on the Tonight Show with Jimmy Fallon.

If you're a fan of Jimmy Fallon's 'Ew' sketch on The Tonight Show, you'll love the video he's produced with with Will.i.am.

Sofia Vergara knew exactly what she was doing the second she took the 'Tonight Show' stage last night. The 'Modern Family' star was hellbent on one thing: playing one of host Jimmy Fallon's favorite games (and we know how much Fallon loves games) and using it to totally turn the tables on him. You like Lip Flip, huh, Jimmy? Right? You don't like it as much as Sofia does.

Jimmy Fallon may be a professional performer, but even the highly musical 'Tonight Show' host is no match for professional musician skills of 'The Voice' hosts Gwen Stefani and Blake Shelton. The 'Tonight Show' host invited the pair on to the show last night for an epic lip sync battle, and things got ugly -- and quickly.

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

This is the natural progression of 'Tonight Show' host Jimmy Fallon's assorted warblings and big-time musical impressions: a full-scale musical medley co-starring Barbra Streisand. The songstress has a new album out -- her 34th! -- that's titled 'Partners' and features just a mess of duets between Babs and a bunch of male partners. Get it? Partners?

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.

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.