Jonathan Coulton quit his day job as a software developer in 2005 to become a full-time musician, starting with a risky experiment to record a new song every week for a year. The result, Thing A Week, launched his independent career. He's responsible for some of geek culture's greatest anthems — "Code Monkey", "Re: Your Brains", and the closing themes for Portal and Portal 2. His most recent album, Artificial Heart, reached #1 on Billboard's Top Heatseekers Chart.