Daltry literally mixed theater with musicianship when The Who released Quadrophenia, the first rock opera to ever exist. The Who's Quadrophenia tour sold out every single show around the globe. He and Pete Townsend, the guitarist of The Who and another Rock and Roll Hall of Fame member, hand in hand dominated the music industry for a decade.
Alice Cooper
Alice Cooper invented the genre that is currently known as "Shock Rock." Cooper used fake blood, electric chairs, guillotines, and tons of other edgy imagery specifically intended to make the viewer feel uneasy.