August 2012, Backbeat Books will publish the Howard Kaylan biography: "The Voice Of The Turtles".
-- info: Guy Darol (on Facebook)
Mark Volman and Howard Kaylan joined Frank Zappa's Mothers Of Invention in 1970. They had been the leadsingers of The Turtles. They recorded and performed as The Mothers Of Invention until Zappa's accident at the Rainbow Theatre, December 1971.
In Zappa's band they were refered to as The Phlorescent Leech (Mark Volman) and Eddie (Howard Kaylan). In the 1970's, they recorded a number of solo albums as "Flo & Eddie".