Celeb Double Takes!

From Jimmy Fallon and Jon Hamm to One Direction and Beyoncé, compare these stars to their wax look-alikes

DIDDY

I can't believe it's not ... Diddy! "I didn't expect them to get this close to it," the hip-hop mogul marveled at the December 2009 unveiling of his likeness at New York's Madame Tussauds. "I'm definitely pleased."