Finally found Everybody Else, a band that I thought sounds a lot like Blur, especially the lead singer who seems to sound like Damon Albarn. They play the Christmas tune in the Old Navy (and Target? Why do I keep thinking this) commercial. Here's the Old Navy commercial. Here's a bit of the lyrics for those of you trying to figure out who these guys are, like I was:
"Reindeer on the Front Lawn"
You wanna party 'till dawnWith Friends that you can count onEverybody just wants to goooooooooGet your Fashion!
I'm going to have to check these guys out a bit more.