Related Information for Bobby Caldwell Bobby Caldwell (born August 15, 1951 in New York City) is an American singer, songwriter and multi-instrumentalist who, despite a prolific musical output over his 30-year career, is still best known for his 1978 hit single "What You Won't Do for Love." While he has always maintained a devoted fan base in the United States, a more legendary status has been bestowed upon him in Japan.Early lifeBobby Caldwell was born in Manhattan to Bob and Carolyn Franklin, the hosts.. read more