Though the iconic screaming fangirl is often dismissed as frivolous, where would the Beatles have been without her? In this rich exploration of the fan culture that has grown around One Direction, Tiffany--an avid fan herself--details how the band owes its popularity to both the fans who have found in it a muse for subversive memes and elaborate fanfiction scenarios, and the hyperfixations of the digital world that have created communities of likeminded superfans. Framed within both her own experiences and her keen observations about fandom in general, Tiffany charts the rise of fandoms, their shaping influence on digital culture, and the likely lasting influence of their loving creative energy.