The Music Meister uses his ability to control minds in an effort to take over the world.
Did You Know?
This isn't the first time Neal Patrick Harris has been a singing super villain. He was also Dr. Horrible in Dr. Horrible's Sing Along Blog. See more
At the end of the first scene wherein Batman rescues everyone from the rocket's blast, he tosses a set of protective earpieces to Aquaman, Black Canary and Green Arrow. Yet in the very next scene, where Music Meister takes control of Arkham Asylum and other local populace, these other three heroes are also controlled and are singing. See more