Jonathan Coulton (born December 1, 1970) is an American singer-songwriter, famous for his songs containing themes of geek culture as well as his rise to popularity through the use of the Internet. Among his most popular songs are "Re: Your Brains" and "Still Alive", the latter of which played over the end credits of the video game Portal, though it was sung by Ellen McLain.
A former computer programmer and self-described geek, Coulton tends to write quirky, witty lyrics about a variety of topics such as science fiction and technology: a man who thinks in simian terms, a mad scientist who falls in love with one of his captives, and the dangers of bacteria. He does not often write topical songs, but he did release a song titled "W's Duty", which sampled President George W. Bush, in 2005 and another called "Tom Cruise Crazy" in 2006. Most of Coulton's songs feature Coulton's vocals accompanied by guitar, bass, and drums, though they often feature the various other instruments Coulton plays, including accordion, harmonica, mandolin, banjo, ukulele, or glockenspiel.
Coulton graduated from Yale in 1993 and is a former member of the Yale Whiffenpoofs and the Yale Spizzwinks(?). He is now the Contributing Troubadour at Popular Science magazine, whose September 2005 issue was accompanied by a five-song set by him called Our Bodies, Ourselves, Our Cybernetic Arms. He is also the Musical Director for The Little Gray Book Lectures.