This teen idol of the 1970s has been undergoing a process of redefinition for much of the last two decades. As the son of actor-singers Jack Cassidy and Shirley Jones and younger half-brother of fellow teeny bopper fav, David, Cassidy clearly had showbiz in his blood. However he has not been content to stay in the few slots allotted him during his early career. Cassidy burst upon European pop charts in the Top 20 with his 1976 debut single, "Morning Girl." He soon cultivated a following in Australia as well and toured there and Europe. Cassidy returned to the US and made the transition to TV actor, co-starring with Parker Stevenson on "The Hardy Boys/Nancy Drew Mysteries" (ABC, 1977-79). This gig roughly coincided with the release of his first single in the US, the popular cover of the 1963 Crystals hit, "Da Doo Ron Ron"--which went gold--and his debut album, "Shaun Cassidy"--which went platinum. Cassidy released five more albums over the next three years, several of which went platinum and generated more hit singles. With a popular TV show and a thriving career as a recording artist and performer, he seemed to be living the teen dream.