What's the song on the Palm Pixi commercial?

Search: palm pixi commercial

Why: Just saw it during "Gossip Girl." The song has no words. It sounds like... well, pixies.

Answer: "Sleepyhead" by Passion Pit! This commercial right here:

Source: PreCentral.net

The More You Know: Variety used the slang "passion pit" to refer to drive-in theaters because of their privacy and romantic allure for teenagers. The band was formed in Cambridge, MA. The song does have lyrics, btw. Here is a video: