"Wizard rock"--music based on the Harry Potter series by J. K. Rowling--is an idiosyncratic subgenre, with band names like Harry and the Potters, Draco and the Malfoys and The Whomping Willows. Drawing on input from insiders and fans, and interviews with more than a dozen wizard rockers, this book explores the history and aesthetics of the movement. An appendix lists dozens of popular bands, members and discographies: a must-have for fandom scholars and wizard rock devotees alike.