Like Peter Moore stated at the Microsoft E3 conference, "Corporeal is made up of five talented teenagers from Libertyville, Illinois." who ended up becomin' an internet sensation after they did their own version of the Halo theme song at their High School talent show. Crazy. Here's a clip of their performance from the Microsoft E3 2007 keynote.

You can also check out their MySpace page to hear more of their goodness.