 It was written by Chris D'Arienzo, directed by Kristin Hanggi and choreographed by Kelly Devine with music supervision, arrangements and orchestrations by Ethan Popp.During the performance, the performers frequently break the "fourth wall", directly addressing the audience and seemingly forgetting (or perhaps reminding the audience) that they are actors in a musical.Despite the musical's title, the Def Leppard song of the same name is not included in the musical.