Fangirls aren't silly, they're powerful, says playwright From causing seismic activity at Harry Styles concerts to Swifties boosting the UK economy during the Eras Tour, the power of teenage female pop fans shouldn't be underestimated. For playwright Yve Blake, the danger of dismissing these youngsters is the inspiration behind her new comedy musical Fangirls. Following the life of 14-year-old Edn