Mariah Carey Performs “All I Want For Christmas Is You” With Jimmy Fallon, The Roots (VIDEO)
Well, if this video doesn't get you in the holiday spirit, nothing will! Mariah Carey performs her classic holiday song, "All I Want for Christmas Is You," with The Roots and Jimmy Fallon, all playing instruments that seem to be gathered from an elementary school. There are even some adorable kiddos singing back-up! Warning: You'll be humming this song all day.