Hear Justin Bieber and Usher Duet

"Justin and I did the classic record 'Chestnuts Roasting on an Open Fire.' This record is going to be remembered for years to come," Usher told Seacrest. "It's a record that has always been one of my favorites, and I'm happy that I was able to share it with Justin, and for us to put it out. The album is full of surprises. Justin's 'Under The Mistletoe' is going to be incredible!" Listen to the song here

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