The song, which Carey performed at the recent 81st annual Christmas in Rockefeller Center tree-lighting ceremony, hit the number one spot with 29,000 downloads and big airplay figures.
Brenda Lee's 1958 classic 'Rocking Around the Christmas Tree' came in at two and Bobby Helms' 'Jingle Bell Rock' is at three on the first US festive chart of the year.
Meanwhile, on the US Christmas albums chart, Duck Dynasty stars the Robertsons' 'Duck the Halls: A Robertson Family Christmas' is ranked number one, just ahead of Kelly Clarkson's holiday compilation 'Wrapped in Red'.