Mark Volman

Mark Volman is an American rock and roll guitarist, vocalist, and songwriter, best known as a founding member of the Turtles. Volman became a standout figure upon joining the Mothers of Invention under the tutelage of Frank Zappa. At times during his career he has used the pseudonym Flo, working alongside his friend and partner Howard Kaylan they at times have used the stage names of Flo amp Eddie.

Volman was born and raised in Los Angeles, California, on April 19, 1947. He grew up in Westchester, a suburb of Los Angeles, where he graduated from Westchester High School in 1965.

Source: Wikipedia