Ellen McLain
Valve Studio Orchestra
Valve Studio Orchestra
Valve Studio Orchestra
Valve
Valve
Valve
Valve
Valve
Valve
Valve
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Aperture Science Psychoacoustic Laboratories
Valve
Lyrics for this song have yet to be released
Valve released Guard Down on Thu Nov 01 2007.