Corr, the youngest of four children, is born to Gerry Corr, a manager of the payroll department of the Irish Electricity Supply Board (ESB), and his wife, Jean, a housewife. Gerry and Jean have their own band, Sound Affair, which plays songs by ABBA and the Eagles in local pubs in Dundalk where they would often bring along their children.
With the encouragement of her parents, Corr takes up the tin whistle and is taught the piano by her father. Throughout their teenage years, she and her siblings often practise in her brother Jim‘s bedroom at a house he had rented. She sings lead vocals, her sister Sharon plays the violin and sister Caroline and Jim both play keyboards. She takes part in school plays at her school, Dundalk’s Dún Lughaidh Convent.
Corr debuts in 1990 as the lead singer of the Celtic folk rock and pop rock group The Corrs along with her three siblings. Aside from singing lead vocals she plays the tin whistle, the ukulele, and the piano.
With the others, Corr releases six studio albums, two compilation albums, one remix album and two live albums. She also pursues a solo career, releasing her debut album, Ten Feet High, in 2007. The album moves away from the sound of the Corrs and features a dance-pop sound. Her next album, released on May 30, 2011, is entirely made up of covers of songs that were important to her when younger.
Corr is involved in charitable activities. She plays charity concerts to raise money for the Pavarotti & Friends Liberian Children’s Village, Freeman Hospital in Newcastle upon Tyne, England, the victims of the Omagh bombing in Northern Ireland and The Prince’s Trust in 2004. She is an ambassador for Nelson Mandela‘s “46664” campaign, raising awareness towards AIDS in Africa. During the Edinburgh Live 8 on July 2, 2005 The Corrs perform “When the Stars Go Blue” alongside Bono to promote the Make Poverty History campaign. Along with her siblings, she is appointed an honorary MBE in 2005 by Queen Elizabeth II for her contribution to music and charity.