The Sugababes are an English girl group composed of Mutya Buena, Keisha Buchanan and Siobhán Donaghy. The lineup changed three times before returning to the original lineup in 2011.
From left to right: Mutya Buena, Siobhán Donaghy and Keisha Buchanan, performing on the Sacred Three Tour, 2013
The second Sugababes line-up in May 2005
The third line-up of the Sugababes in April 2006
The third Sugababes line-up in April 2008 on the Change Tour, their largest-scale tour to date
A girl group is a music act featuring several female singers who generally harmonize together. The term "girl group" is also used in a narrower sense in the United States to denote the wave of American female pop music singing groups, many of whom were influenced by doo-wop and which flourished in the late 1950s and early 1960s between the decline of early rock and roll and start of the British Invasion. All-female bands, in which members also play instruments, are usually considered a separate phenomenon. These groups are sometimes called "girl bands" to differentiate, although this terminology is not universally followed.
Singing group Labelle, c. 1975
Breaking through during the mid-1990s, the Spice Girls became the best-selling girl group of all time.
Image: Please Mr. Postman album
Image: Girls' Generation at DMC Festival 2015 MBC Radio DJ Concert 02