The Teen Titans came to Fall Out Boy for help when trying to enter another dimension to rescue Cyborg. Robin explains to them they needed them to sing a magic song to help their friend. The band (except for Pete), however, were against it and refused. Pete tried to have his band mates change their minds but didn't have no effect. Patrick apologizes to the Titans which clearly disappoints them. Later, the band came into the magical dimension to help the Teen Titans, B.E.R. and CeeLo Green defeat the dragon.
- Patrick Stump (lead vocalist, rhythm guitarist)
- Pete Wentz (bass guitarist)
- Joe Trohman (lead guitarist)
- Andy Hurley (drummer)
- Patrick: Patrick has light skin and light brown hair. He wears glasses, a hat, a blue sweater and dark pants.
- Joe: Joe has light skin and thick dark wavy brown hair. He wears a purple shirt and purple pants. He also has tattoos visibly covering both his arms.
- Pete: Pete has light skin and short black hair. He wears a denim jacket with a black shirt underneath and jeans.
- Andy: Andy has light skin, short redish-brown hair and a brown beard and mustache. He wears black sunglasses, a dark black-purplish shirt and dark pants. Like Joe, he as tattoos visibly covering both his arms.
- Fall Out Boy is the third celebrity guest, with the first being LeBron James in "The Cruel Giggling Ghoul" and CeeLo Green in "Chapter One: I Saw You Dance".
- Michael Jackson does not count since he never spoke or had an episode centered around him.