Justin Bieber and Usher took the stage together on November 23, 2011 to film a Christmas special in New York City. We’re guessing that the duo sang their single “The Christmas Song (Chestnuts Roasting On An Open Fire).”

Do you own Justin’s Christmas CD “Under The Mistletoe”? If so, which song on the CD is your favorite?

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• Justin Bieber And Usher On NBC’s Today Show
• Justin Bieber’s “Under The Mistletoe” Webisode – Justin Bieber And Usher In The Studio
• Justin Bieber Plays Drums On His Christmas Album “Under The Mistletoe”