Memphis, Tennessee's Sleep Theory have rocketed from formation to one of active rock radio's most-played acts in record time, blending metalcore's aggression with R&B smoothness and pop accessibility in a way that recalls Linkin Park's genre-defying approach. Vocalist Cullen Moore's ability to shift between guttural screams and silky clean singing gives the band a dynamic range that has resonated with both rock and pop audiences. Their debut album 'Afterglow' and massive radio hits have positioned them as one of heavy music's biggest breakout stories of the 2020s.