Jonathan Coulton & GLaDOS - Still Alive
GLaDOS & Jonathan Coulton - Want You Gone
GLaDOS & Jonathan Coulton - Want You Gone (Portal 2 OST)
Jonathan Coulton & Glados - Still Alive (Portal OST)
GLaDOS & Jonathan Coulton - Want You Gone (Portal 2 End Credits Song)
GLaDOS & Jonathan Coulton - Still Alive (Portal End Credits Song)
GLaDOS & Jonathan Coulton - Still Alive (Portal 1 End Credits Song)
Jonathan Coulton & Ellen McLain - Want You Gone (GLADos)
Jonathan Coulton & GLaDOS - Still Alive (soundtrack Portal)
Jonathan Coulton & GLaDOS - Still Alive (Portal credits song)