Valve Software's 2007 video game Portal was an instant classic that immediately won fans over with its unique, physics-based challenges, innovative portal gun, and sharp comedy. But beyond the dark humor and diabolical puzzles was a hidden gem for players able to make it to the end: a witty and humorous song called "Still Alive."
Singer-songwriter Jonathan Coulton was the man behind the infectiously catchy Easter egg song. But in an interview with CBS News, JoCo -- as he's known to fans -- showed why he's more than a one-hit wonder.

Coulton recently came out with his eighth album, "Artificial Heart." As he explains in the video above, he doesn't exactly have a name for his particular genre of geek-friendly, comedic folk songs. But like any artist, Coulton decided to write about what he knows.
For Coulton, a former computer programmer, that meant singing about the 9-to-5 grind of a cubicle worker in "Code Monkey"; the pharmaceutical euphoria of over-medication in "I Feel Fantastic"; and... zombies. Sure, why not?
CBS News was lucky enough to get Jonathan to perform some of his hits in our studio. But if that's not enough to satisfy your geek-rock hunger, check out his Web site for tour dates. Or if you want to take your fandom to the next level, a seven-day cruise around the Caribbean with JoCo and some of his closest friends might do it.
This story originally appeared on CBSNews.com.