Kelly Bailey, Mike Morasky, Jonathan Coulton - Turret Opera
Kelly Bailey, Mike Morasky, Jonathan Coulton - O Cara Mia, Addio
Kelly Bailey, Mike Morasky, Jonathan Coulton - End Song Robots (OST Portal 2)
Kelly Bailey, Mike Morasky, Jonathan Coulton - Turret Wife Serenade (Cara Mia Addio) (OST Portal 2)
Kelly Bailey, Mike Morasky, Jonathan Coulton - Turrets - Opera "Cara Mia"
Kelly Bailey, Mike Morasky, Jonathan Coulton - End Turret Orchestra (OST Portal 2)
Kelly Bailey, Mike Morasky, Jonathan Coulton - Turret Wife Serenade (Opera "Cara Mia") (OST Portal 2)
Kelly Bailey, Mike Morasky, Jonathan Coulton - Turret Opera (Portal 2 OST)