Can't say for sure, but it sounds like Guster
Actually, one of the songs is Guster, Tiny Tree Christmas!
If you mean the Thanksgiving into Christmas commercial, it's Perry Como singing 'It's Beginning to look a lot like Christmas."
We Just Won't Be Defeated by Go! Team
Bishop Allen.
Santa.
Pomplamoose
New Seekers
Blackalicious Toy Jackpot Guster - Tiny Tree Christmas
Florence and the machines
Justin Hines
Nataly Dawn is the singer, the band project is Nataly and her boyfriend it is called Pompamoose. look them up on Youtube
The song in the Zales commercial Nov. 2010 is Girl on my Mind by the Black Keys
The singer is Stacey Steinmeier
Ben Griffith
josey plassette
Kate Herzig Forevermore is the song used in the Target Kids August/September commercial