Caesar and Cleo, later known as Sonny and Cher, were an American pop music duo active in the mid-1960s. Their music style was rooted in folk-rock but evolved to include elements of pop and psychedelic rock, characterized by Sonny Bono's distinctive baritone vocals and Cher's powerful contralto voice. Their most influential work is undoubtedly "I Got You Babe," a number-one hit that became an anthem for the 1960s counterculture. The duo's influence on popular music extended beyond their songs, as they also became known for their distinctive fashion and televised variety shows.