Justin Bieber: 'All I Want For Christmas is You' Music Video!

Justin Bieber and Mariah Carey play Santa Claus in their new music video for “All I Want For Christmas is You.”

The video is actually Shazam-enabled, so once you tag the video, you’ll be entered for a chance to win a guitar signed by Justin, 17, and more!

Here’s what you do:
– Activate Shazam Friends (via the Friends Tab in your Shazam App)
– Shazam “All I Want for Christmas is You” on VEVO between now and January 15th, 2012.

Winners will be selected on January 16th and fans can follow the “Golden Tag” promotion on Facebook!