If you are talking about the newest MacBook air commercial than it is: Yael Naim the song is: New Soul
Anastasia
alessis
everyone sings jingle bells.
Erin McKeown
Suzie McNeil.
Anastasia
Bob Rivers
Dolly Parton
Mark Behrens sings the Shaw's Jewelry Jingle. Mark even writes his own jingles and is very much in anything to do with jingles.
Angela McCluskey
Mitt Romney.
Corinne Andrew