Later Girl Groups
Occasionally, the term is used to describe a conventional rock group in which all the members are female and who write, arrange, and perform all their own material. These might best be referred to as all-women bands. Earlier girl groups almost always had all-male bands backing them up, so the distinction of girl group really only applied to the vocalists.
The popularity of girl groups has waxed and waned since then, and their sounds have changed as they adopt (and occasionally help define in the popular imagination) the musical fashions of the period. In the early 1980s The Go-Gos, had an excellent reputation as a live rock band, as well as an enthusiasm for on tour debauchery to equal any of their male counterparts.
However, the 1990s saw a return to manufactured, packaged acts marketed as clean-cut and aimed at a young audience, especially young girls. The Spice Girls were one of the more influential girl groups in the mid-1990s, with their post-feminist trademark "Girl Power". Up to approximately 2001, such boy bands and girl bands were still very popular, but with many members opting to go for solo projects, they have declined in number and popularity ever since.
See also: List of all-women bands