Courtesy of Nintendo
Mariah is shown in a flirty Santa outfit, while Justin cruises around a department store just like he did in the sneak peek of the video we posted before the premiere. In addition to hi-top sneakers, Bieber's attention is caught by the Nintendo DS, which gets plenty of camera time in the clip.
Justin and Mariah finally share the screen at the end, when they hook up friends and fans with dozens of wrapped gifts. It's good to be a friend of Bieber.
The song, which was originally released by the 41-year-old singer in 1994, has been given a makeover by the 17-year-old star for his latest album, 'Under the Mistletoe.' Check out the video for the revamped tune below and let us know what you think of it in the comments.