Jimmy Fallon and Justin Timberlake are kids at Camp Winnipesaukee, singing "What's Up" by 4 Non Blondes and Gloria Estefan's "Rhythm Is Gonna Get You" with cameos from Billy Crystal and Keegan-Michael Key.

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The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives.

Camp Winnipesaukee with Justin Timberlake, Keegan-Michael Key and Billy Crystal
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