Busta Rhymes
Gregory Alan Isakov, the song is Big Black Car
Jessica Frech
The 2011 Christmas commercial that Time Warner is airing contains a song by Guster, "Tiny Tree Christmas ♫ ... and then appears a perfect Christmas time"
ELO
It's called "Big Black Car" by Gregory Alan Isakov.
I did a little research and it is a group out of Detroit, named the "Sound of Gospell" who sing an Eminem song for the Chrysler Big Finish 2011 holiday commercial. It's the commercial where they light up the windows of a skyscraper behind the singers and the cars in the shape of christmas tree.
Jessica Frech
David Archueletta
Tiny Tree Christmas - Guster
Jessica Frech sings about Hyundai Assurance on the 2011 Holiday Hyundai commercial.
Neon Trees
Fabienne Delsol