David Cassidy, who rose to fame and teen heartthrob as an actor and singer in the 1970s, has died. He was 67. (Source: CNN)(RNN) - David Cassidy, a singer who rose to major teen-heartthrob status in the 1970s with his starring role in TV's "The Partridge Family," died Tuesday after suffering multiple organ failure, his longtime publicist reported. He was 67. In the early ‘70s, Cassidy became an instant sensation as Keith Partridge on "The Partridge Family," which ran from 1971 to 1974.