Does any one know what this song is from the Epcot fountain at Christmas?

I am trying to figure out what song is at the very start of this youtube video. You only hear the last couple seconds, at the start of this video: a href="http://www.youtube.com/watch?v=pnDHuTADojQ" rel="nofollow"http://www.youtube.com/watch?v=pnDHuTADo…/a , before the Carol of the Bells.