Alphabetically Organized by Album Era:

Cry Baby / As If! (2009-2011)
• Cherry Bomb [Performed by Lolene]
• Follow My Fingers [Performed by Britney Spears]
• Obssesion [Performed by Ryan Tedder]
• Traces [Performed by Neon Hitch]

Ghost (2011-2012)
• Everything is Embarrasing [Performed by Dev Hynes]

Masochism (2014-)
• Guardian [Performed by Justin Raisen]
• Legends [Performed by Justin Raisen]
• NYC (The Way Out) [Performed by Charli XCX]