Former teen idol David Cassidy dies at 67 - SFGate

Mr. Cassidy’s stock soared because of his androgynous good looks, but soon because of his vocals as well. Jones, of course, was a veteran vocalist who had starred in musicals such as “Oklahoma” and “South Pacific,” but Cassidy hadn’t been cast because of his vocal abilities. In fact, the show’s producers assumed he, like most of the young actors playing the Partridge kids, couldn’t sing.

The only ones watchable on the show were Jones, Dey and Cassidy. RIP David.