The episode features the villainous Music Meister (voiced by Neil Patrick Harris), who uses his power to control people through song to try to take over the world.

Batman tries to capture him on a cross-town chase, as Meister releases the inmates and villains of Iron Heights and Arkham Asylum ("Drives Us Bats").

Having heard Black Canary sing about her unrequited love for Batman ("If Only"), the Meister has fallen for her, but not enough to give up villainy, and she rejects him.

screened on June 24, 2009 at Comic-Con,[3][4][5][6][7][8] where supervising producer James Tucker noted that he believed that the show would be successful after seeing people wearing Music Meister costumes after the episode's debut.

[9] The episode received a standing ovation at its debut,[9] in part because of the humor of the Music Meister's dance-inducing powers.