Music·Posted on Dec 5, 2012Watch The Best Rendition Of "All I Want For Christmas Is You” EverMariah Carey stopped by Late Night and jammed with Jimmy Fallon, The Roots, and a bunch of adorable children. 'Tis the season.by Tommy WeselyBuzzFeed StaffLinkFacebookPinterestTwitterMail View this video on YouTube Tap to play GIF Tap to play GIF Tap to play GIF Tap to play GIF GIFs by Lauren