Jimmy Fallon

I don't know if you have been watching Jimmy Fallon's first week on The Tonight Show, but he has brought his A-Game. Last night he ran a clip (or clips) that has NBC's Brian Williams rapping the 1970's classic 'Rapper's Delight' by the Sugarhill Gang.

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"?

Just a few weeks' time will see the late night landscape dramatically shift, as 'Late Night' host Jimmy Fallon finally takes the 'Tonight Show' throne from Jay Leno, and 'SNL' veteran Seth Meyers joins 'Late Night' in his wake. Fallon has tapped cinema icon Will Smith and Irish rockers U2 for his inaugural 'Tonight Show' gig, but who will join Seth Meyers on the couch?

A few weeks from now, the late-night TV landscape will look drastically different, what with current 'Late Night' host Jimmy Fallon taking over 'The Tonight Show' from Jay Leno, while 'SNL''s resident Weekend Update anchor Seth Meyers graduates to 'Late Night' in turn. The first promos for these takeovers have emerged, but will everything be ready in time for opening night?

During the 'Celebrity Family Feud' skit of 'SNL' last night (Dec. 21), which featured CBS network stars versus NBC network faves, Jimmy Fallon played Jim Parsons from 'Big Bang Theory.' Musical guest Justin Timberlake, in turn, played Fallon to manic perfection.

Few guest performers seem to get 'SNL' quite like Justin Timberlake, who has a wonderful habit of showing up on the stage and creating classic sketches and characters with seemingly no effort. In most cases, he would easily overshadow the actual guest host, but when that guest host is show alum (and current late night superstar) Jimmy Fallon, there is less overshadowing and more comedic awesomenes

Jimmy Fallon is hosting 'SNL' on Saturday, Dec. 21, with his BFF Justin Timberlake as the musical guest.

Katy Perry chatted about everything from comedians to competition to cartoons on 'Late Night With Jimmy Fallon,' leading up to her musical performance on 'Saturday Night Live.'

Miley Cyrus appeared on 'Late Night With Jimmy Fallon' this week to promote 'Bangerz' and to show off her "gets it" personality. The singer performed an a cappella version of 'We Can't Stop' as the center square in a 'Brady Bunch'-style grid.

Last night, 'Hello Ladies' star Stephen Merchant, Joseph Gordon-Levitt and Jimmy Fallon squared off in a lip sync contest, and things quickly got out of hand.

Justin Timberlake and his favorite late-night partner-in-crime, Jimmy Fallon, are back with yet another funny video, and the results are #TotallyHilarious.

Justin Timberlake and his pal Jimmy Fallon returned to Camp Winnipesaukee in their latest hilarious skit for the TV host's late night talk show.