Gary Lewis and the Playboys was an American 1960s rock and roll band led by Gary Lewis, the son of comedian Jerry Lewis. They are best known for their pop hits such as "This Diamond Ring", which was a Billboard Hot 100 number one hit in 1965. The band's style was characterized by simple, melodic pop songs, often featuring Lewis's distinctive falsetto voice. Despite their relatively brief period of major success, they were significant in shaping the sound of American pop music during the mid-1960s.