Dino, Desi & Billy was an American pop group that emerged in the mid-1960s. The trio consisted of Dean "Dino" Martin (Dean Martin's son), Desi Arnaz Jr. (Lucille Ball and Desi Arnaz's son), and their friend Billy Hinsche. Their music was characterized by light, catchy pop tunes, and they gained notoriety primarily due to their famous parentage. Their most significant hit was "I'm a Fool", which reached number 17 on the Billboard Hot 100 in 1965.