Valve’s upcoming Orange Box will feature music from programmer-turned-musician Jonathan Coulton when it’s released later this week. He has composed a single which will be included in the title. He is known for his rendition of Sir Mix-a-Lot’s “Baby Got Back” as well as many of his original geek-friendly compositions.

“I am delighted the Valve design team selected me to help make the surprise single a success,” he said. “If it’s not every geek’s dream to be immortalized in a video game, it was mine.”