Mark Volman, who co-founded The Turtles and performed with Flo & Eddie, has died at 78

Mark Volman, a founding member of the 1960’s pop group The Turtles, whose hits include “Happy Together” and “Elenore,” died in Nashville, Tennessee, on Friday after a brief, unexpected illness, according to his publicist, Ame Van Iden. He was 78.

Volman was known for his exuberant stage presence and distinctive vocals. In a 1967 performance of “Happy Together" posted to YouTube, Volman wears bright orange and dances around with a French horn that he doesn't appear to play, but does place on bandmate Howard Kaylan's head.