All I want for Christmas, is this. THIS IS THE BEST VIDEO EVER CREATED. Seriously, what more could you ask for? Queen Mariah singing her classic, and then all of a sudden Adele comes in. Then Demi and Nick. Then Gaga. Then Selena.
James Corden has made all our Christmas wishes come true. Watch the video above....
Photo Credit: Twitter
Video Credit: The Late Late Show with James Corden
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