Bobby Caldwell was an American singer, songwriter, and multi-instrumentalist celebrated for his smooth blend of soul, R&B, jazz, and pop. Rising to fame in the late 1970s with his timeless hit “What You Won’t Do for Love,” Caldwell earned acclaim for his rich vocals, sophisticated arrangements, and heartfelt songwriting. Over a career spanning more than four decades, he became a respected figure among musicians and fans alike, influencing generations of artists across genres with his signature blue-eyed soul sound.