"Still Alive" is a song featured in the 2007 video game Portal. It was written by Jonathan Coulton and was performed by Ellen McLain 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 as he was a fan of the Half-Life series. It is the end credits song, and plays after GLaDOS is defeated by Chell (the game's protagonist and player character), with the lyrics suggesting 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 as a free downloadable song for the Rock Band series, originally released on the 1 April 2008. A rerecorded version, with Sara Quin on lead vocals, appears on Coulton's 2011 album Artificial Heart. The sequel to Portal, Portal 2, also ended with a song written by Coulton and sung by McLain called "Want You Gone".