One of last year’s greatest games was, arguably, the MTV published “Rock Band.” The greatest song of last year was, undeniably, “Portal“’s “Still Alive.” What happens when two of the biggest things to happen in video games collide? People get happy.

“Rock Band” forum member/developer hmxsean (he’s one of the guys that announces the weekly DLC) is reporting that earlier this week, at Valve’s GDC party, it was announced that “Still Alive” as performed by GLaDOS, will soon be appearing as “Rock Band” DLC.

As you may remember the song was penned by the genius Jonathan Coulton, who we interviewed about the song last October, and can be heard over the closing credits of “Portal” (as well as on the iPods of most of the Multiplayer staff). Date and pricing have yet to be announced, but rest assured it will show up soon, and then you too can feel like you just survived the Aperture Science Enrichment Center, while hitting the high notes, and not eating cake, because, of course, the cake is a lie. (Has that gotten old yet?)