A girl group, as the name implies, is a musical group featuring a group consisting usually of young femalesingers, singing all types of songs. They are distinct from girl bands and all-women bands, where the women sing and play instruments.
Girl groups date back to the late 1950s and the beginning of the 1960s, when they were often manufactured by producers or record companies. Often in these times, the girl group was used as a vehicle for the latest work by a label's resident songwriters--such as Ellie Greenwich, Jeff Barry, Carole King, Cynthia Mann and Barry Weil--along with producers such as Phil Spector and record labels such as Motown. Even earlier, female pop music singing groups were popular; "Sister groups" like the Andrews Sisters and the Boswell Sisters were composed of sisters or relatives. Groups such as the Boswells and the Keller Sisters and Lynch were pop recording artists dating as far back as the 1920s.