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.

Caldwell's sophomore period involved the considerable task of following up such a staggering success as What You Won't Do for Love; during this time, his Japanese audience steadily eclipsed his American one. The Cat in the Hat (1980) and Carry On (1982), were artistic improvements upon the first album, but did not match its commercial success. They were, however, bestsellers in Japan -- The Cat went platinum and Carry On gold—and sealed Bobby's reputation as a superstar in that country.