BGM： Audiomachine - Akkadian Empire (No Choir) Steve Jablonsky - The All Spark Steve Jablonsky - Scoponok Steve Jablonsky - Arrival to Earth Steve Jablonsky - Autobots Immediate Music - Arcana Audiomachine - Guardians At The Gate (No Choir) Audiomachine - The Dark Knight (No Choir) Audiomachine - Pr