Santa Claus and Mariah Carey perform during a pre-tape performance for NBC's Christmas tree lighting at Rockefeller Center on Nov. 27 in New York.
(Credit: James Devaney, WireImage)
What's better than a recording of Mariah Carey singing her neo-classic carol All I Want For Christmas Is You? Having her belt it out in person, obviously.
The star dropped by Late Night with Jimmy Fallon to help the comedian and his house band, The Roots, with their rendition of the hit song.
Even better, the crew was joined by a quartet of school-age kids who did a pretty impressive job on background vocals!
We'll be seeing much more of Mariah on the small screen when she makes her debut as a judge on Fox's American Idol, set to premiere Jan. 16.
