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The duet will appear on JB's forthcoming holiday album, 'Under The Mistletoe,' which also includes collabs with Usher and Boys II Men. Leading up to Mariah's duet announcement, the Biebs had been tweet-teasing fans about a mystery singer set to appear on the CD with messages like, "Who is the living legend that I got on the album?" and "I mean the fact that I might be singing with one of the greatest voices ever one of the greatest songs of christmas ever..."
Now that they mystery is solved, a new question arises: Will the reboot of this classic Christmas sung by two of music's biggest stars take the holiday favorite to a whole new level, as Mariah suggests, or leave us wishing the pop stars didn't mess with a classic? Find out for yourself when 'Underneath the Mistletoe' drops Nov. 1.
Watch Mariah Carey's Video Announcement
Watch Mariah Carey's 'All I Want for Christmas Is You' Video