Little Mix is a girl band.
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 . Little Mix are a British girl group formed in 2011 during the eighth series of the UK version of The X Factor . With four UK number one singles and highest first week UK album sales for a girl band since the Spice Girls , Little Mix are one of the most successful female acts in contemporary British popular culture : they appeared on Debrett 's 2017 list of the most influential people in the UK .