VIDEO: Kevin Bacon, Matthew Morrison and More Sing '12 Days of Christmas'

GLEE's Matthew Morrison, tennis star Novak Djokovic, Psych's James Roday and more joined a celebrity sing-along of '12 Days of Christmas', with Kevin Bacon at the helm. Below, check out the video, featuring the stars belting out the lyrics at home, in their cars, on the street, in the theater and more!

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