Earl "Speedoo" Carroll (born April 18, 1935) is an American rhythm and blues singer, best known as the lead vocalist of the classic doo-wop group The Cadillacs. Emerging in the early 1950s, The Cadillacs were instrumental in popularizing the doo-wop genre, characterized by its vocal harmonies and street-corner performances. Notable works include their hit singles "Speedoo" (1955), which became a signature song for Carroll, showcasing his distinctive vocal style and playful lyrics. Other notable tracks include "Gloria" and "Ruby Baby." The Cadillacs were known for their energetic performances and innovative arrangements, influencing countless artists in the doo-wop and R&B scenes. Carroll's impact on music extends beyond his own recordings; The Cadillacs helped shape the sound of early rock and roll, paving the way for future vocal groups. Their work has been recognized in various retrospectives on the genre, and Carroll's contributions continue to resonate in the music industry today. His legacy as a pioneering figure in doo-wop remains significant, highlighting the genre's cultural importance in American music history.