Mariah Carey has become almost synonymous with Christmas music, so it was only right she helped kick off Christmas in Manhattan with NBC for their annual “Christmas in Rockefeller Center” special. Mrs. Cannon dressed the part as she performed her new single “Christmas Time Is in the Air Again,” as well as her classic, “All I Want for Christmas Is You.” The show airs tonight at 8pm, and also features performances from Cee-Lo Green, Rod Stewart and Victoria Justice.
