A girl group is a popular music act featuring several young female singers who generally harmonise together.

Girl groups emerged in the late 1950s as groups of young singers teamed up with behind-the-scenes songwriters and music producers to create hit singles, often featuring glossy production values and backing by top studio musicians. In later eras the girl group template would be applied to disco, contemporary R&B, and country-based formats as well as pop.

A distinction is made here with all-female bands, in which members also play instruments, though this terminology is not universally followed.

During the Music Hall/Vaudeville era, all-girl singing groups were mainly novelty acts singing nonsense songs in silly voices. One of the first major exceptions was the Hamilton Sisters and Fordyce, an American trio who succesfully toured England and parts of Europe in 1927, recorded and appeared on BBC radio - they toured the US variety and Big-time Theaters extensively later changed their stage name to the Three X Sisters (the ladies were together singing from 1923 until the early 1940s) known for close harmonizing, as well as, barbershop style or novelty tunes, and utilized their 1930s radio success. Boswell Sisters, who became one of the most popular singing groups from 1930 to 1936, with over twenty hits. The Andrews Sisters started (1937) as a Boswell tribute band and continued recording and performing through the 1940s into the late-1960s, achieving more record sales, more Billboard hits, more million-sellers, and more movie appearances than any other girl group to date.

Kelly Rowland (born Kelendria Trene Rowland on February 11, 1981) is an American recording artist, songwriter, dancer, actress and television personality. Born in Atlanta, Georgia and raised in Houston, Texas, Rowland rose to fame as one of the founding members of the American R&B girl group Destiny's Child, one of the world's best-selling girl groups of all time.

During the hiatus of Destiny's Child, Rowland released her debut solo album Simply Deep in 2002, which contained influences of alternative-R&B and rock music. It included her joint worldwide number-one single "Dilemma" with rapper Nelly, and the international top-ten hit "Stole". Following the group's disbandment in 2005, Rowland released her second solo effort Ms. Kelly in 2007 and despite being less successful than its predecessor, it included the international hit singles "Like This" and "Work". In 2009, Rowland scored her second worldwide number-one hit with French DJ David Guetta, on his single "When Love Takes Over". Her third solo album Here I Am was released in 2011 and included the UK top-ten hits "Commander" and "Down for Whatever", as well as the US R&B number-one "Motivation".

Elena Jane Goulding (born 30 December 1986), known professionally as Ellie Goulding, is an English singer-songwriter. In 2010 she became the second artist to both top the BBC's annual Sound of... poll and win the Critics' Choice Award at the BRIT Awards in the same year, following Adele's win of both in 2008. After signing to Polydor Records in 2009, she released her first EP in 2009, An Introduction to Ellie Goulding, followed by her debut studio album Lights in 2010. Her album debuted at number one on the UK Albums Chart and has sold over 650,000 copies in the UK. "Lights" was released in America March 8th 2011, where the title track has been certified platinum by the RIAA (excess of 1 million units sold) .

Goulding is a soprano, and her musical style has been compared to that of Kate Nash, Meiko, Lykke Li and Tracey Thorn.

Goulding was born and brought up in a small town near Hereford, Herefordshire, the second of four children. She began playing the clarinet at the age of nine, and at 14 began learning guitar. She attended Lady Hawkins' School in Kington, where she won a main part in a school production, the Wizard Of Oz, as the scarecrow. She started songwriting at the age of 15 and while in college she won a singing competition.