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The pint sized singer plans to release his 11 song festive record on 31st October.
Usher and Boyz II Men were previously confirmed to appear on the record.
Now Justin has also announced that Mariah Carey will collaborate with him on 'All I Want For Christmas Is You'.
The full tracklisting for 'Under The Mistletoe' is:
Only Thing I Ever Get For Christmas
The Christmas Song (Chestnuts Roasting On An Open Fire) feat. Usher
Santa Claus Is Coming To Town
Fa La La feat. Boyz II Men
All I Want For Christmas Is You feat. Mariah Carey
Drummer Boy feat. Busta Rhymes
All I Want Is You
Home This Christmas feat. The Band Perry
Mariah spoke in a video she posted about how excited she is to be working with the teen star on their "festive collabo".