kelly bailey, mike morasky, jonathan coulton
Aperture Innovators Laboratories [Portal 2 Soundtrack]
Kelly Bailey, Mike Morasky, Jonathan Coulton01:07
Kelly Bailey, Mike Morasky, Jonathan Coulton - Turrets Symphony
Kelly Bailey, Mike Morasky, Jonathan Coulton01:25
4 KILOMETRES UNDER SURFACE theme [Music of the Spheres] [Portal 2 Soundtrack]
Kelly Bailey, Mike Morasky, Jonathan Coulton01:07