... there's still a little bit of your face I haven't kissed.

A: Damien Rice
S: Cannonball
C: O

Now this might not look like some sort of Christmas song at first sight, but Damien's debut O will always remain a winter album to me, so it will do. In addition, Cannonball is most likely to be Britain's Christmas number one this year, because it's been covered by Little Mix, this year's X Factor winner (which is alright but not as great as the original, of course).