Jeffree Star's song title "Your Heart is My Piñata" is a direct reference to the Katty Kathy quote of the Rhea sister's invention, with Jeffree's debut album Beauty Killer containing several references to the novel.
Panic! at the Disco's song "Time to Dance" heavily references the novel.
Motion City Soundtrack has a bonus track on their album Commit This to Memory titled "Invisible Monsters", in direct reference to the novel.