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, which played over the end credits of the video game Portal. "Still Alive" is a song featured in the 2007 video game Portal. It was written by Jonathan Coulton and performed by Ellen McLain, who performs it while portraying the Portal character GLaDOS. The song originated in a meeting between two Valve developers and Coulton about him writing a song for the company, which Coulton accepted due to his fandom of the Half-Life series. It is the end credits song, and plays after GLaDOS is defeated by Chell to suggest that she (GLaDOS) is "still alive". The song received significant praise for its humour and the quality of its performance. It has been featured in multiple venues, including at the 2009 Press Start -Symphony of Games-, a yearly Japanese concert event to showcase the musical works of video games. It was also featured in multiple games in the Rock Band series as a free downloadable song,.