The director of the Gifford Children’s Choir of Racine, Washington is a self-described “VG addict,” and it showed in one of the choir’s recent performances: They sang “Still Alive,” the Jonathan Coulton-penned closing theme to Portal.

The video quality isn’t the best, but the performance is, well, a triumph. Also, in case you missed it: Ars Technica recently reported that Jonathan Coulton will be creating music for Portal 2, which is great news.