FILE - This June 2, 2012 file photo shows American singer Mariah Carey performing during a concert in Monaco. An 80-foot Norway spruce that made it through Superstorm Sandy will be lit Wednesday night, Nov. 28, 2012 at Rockefeller Center in an event scheduled to include performances from Carey and Tony Bennett, Rod Stewart, Cee Lo Green, and appearances from Billy Crystal and Bette Midler. (AP Photo/Lionel Cironneau, File) (Credit: AP)
This video of Mariah Carey and Jimmy Fallon doing "All I Want for Christmas Is You" backed by the Roots on classroom instruments and a bunch of cute kids is truly adorable. Happy holidays!