Related Information for Cadillacs The Cadillacs an American doo-wop group from Harlem, New York were formed in 1953 and are noted for their 1955 hit "Speedoo".The group came together as The Carnations, with lead vocalist Earl "Speedo" Carroll (November 2, 1937 – November 25, 2012), Bobby Phillips, Lavern Drake (bass vocalist), and Gus Willingham. As the group moved into the recording studios, James "Poppa" Clark was added as a fifth member, and the name "The Cadillacs" was.. read more