Jimmy Fallon

Last week, Jimmy Fallon asked his loyal 'Tonight Show' audience to send in videos of their children making their best funny faces -- classic kid antics -- without indicating exactly what said videos would be used for. Of course, this is Jimmy Fallon, so the news that the late-night host employed the videos for another one of his celebrity-baiting games shouldn't be too shocking.

Human nature can be so predictable. There are plenty of things that nearly all human beings like, and 'The Tonight Show' host Jimmy Fallon managed to cannily cram two of those things into one little video last night on his show.

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

Paul Rudd dropped by Jimmy Fallon's 'Tonight Show' last night for an epic lip-sync battle between the two pals. And as you can see by the above video, the 'Anchorman' star totally dominated the late-night host.

Last night (Feb. 25) on 'The Tonight Show,' Jimmy Fallon revived a much-loved feature on his previous program, the "Lip-Sync Off." His challenger on the evening was actor Paul Rudd, and both Foreigner and Queen songs were involved in the battle.

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"?

Ever since Bette Midler sang 'One For My Baby (And One More For The Road)' to Johnny Carson' in 1992, it's become a tradition for a concluding late-night television show to be sent off with a musical bang. Last night (Feb. 7), Jimmy Fallon said goodbye to 'Late Night with Jimmy Fallon' in his own way, singing the Band's 'The Weight' with some help from the Muppets.

Bill Gates, the billionaire genius behind Microsoft, appeared on Late Night with Jimmy Fallon recently hoping to create a viral video to promote his website GatesLetter.com. After showing his concept for the video, which Fallon jokingly said they didn't have time for, the hilarious video went viral.

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?

Rock legends Paul McCartney, David Bowie and Bob Dylan all turned up for comedian Jimmy Fallon's opening monologue on 'Saturday Night Live' last night. And one of them even showed up in person!