Rock out to "Still Alive" now!

Earlier in the day we reported that tomorrow would bring "Still Alive," the end sequence tune from the smash-hit Portal, to Rock Band. Well, fire up your Xbox 360's fanboys and girls because Christmas has come early as "Still Alive" is available on the Xbox Live Marketplace today. The 18MB download will set you back exactly 0MS Points ($0.00 in any currency) and features one of the best gaming inside jokes of 2007. Go grab it now!

[Thanks, Z3nGaijin & Ben]

This article was originally published on Joystiq.