B*Witched are an Irish girl group consisting of twin sisters Edele and Keavy Lynch, Lindsay Armaou and Sinéad O'Carroll. Originally active between 1997 and 2002, they enjoyed success in both Europe and North America between 1998 and 2002, releasing two albums and eight singles, all of which made the UK Top 20. Their first four singles, "C'est la Vie", "Rollercoaster", "To You I Belong" and "Blame It on the Weatherman", all reached number one in the UK Singles Chart and the group having sold over 3 million albums worldwide.

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.