In it to win it! Nothing like some friendly competition for these celebrities. See stars -- including Beyonce, Jimmy Fallon, and Jennifer Lopez -- who've kicked up their heels for some of the most hilarious dance-offs ever
Tom Hanks vs. 50 Cent
The Oscar winner kept his feet moving with the rapper during an episode of The Ellen DeGeneres Show in May 2011. Nicole Scherzinger was there, too! "The Hanks family motto is 'give up the funk—tear the roof off the house,'" said Hanks, whose son Chet Hanks is an aspiring rapper.