Dido Florian Cloud de Bounevialle O'Malley Armstrong (born 25 December 1971), is an English BRIT Award-winning and Grammy Award-nominated singer and songwriter.

Dido's mother, Claire (born Collins), is a French poet and her father, William O'Malley Armstrong (9 November 1938 – 22 December 2006) was an Irish publisher and former managing director of Sidgwick & Jackson.

Informally named after the mythical Carthaginian queen, Dido was educated at Thornhill Primary, City of London Girls' and Westminster School. Because she was born on Christmas Day, in childhood she celebrated, rather in the manner of the British monarch, an "official" birthday on 25 June.

After she stole a recorder from school at age five, her parents enrolled her at the Guildhall School of Music in London, England. By the time she reached her teens Dido had learned to play the piano, recorder and the violin. After her teens and whilst working as a literary agent, Dido studied law at Birkbeck, University of London, however, she never completed this course, deciding instead to take up music full-time. After learning the guitar, she showcased her skills to audiences during her 2004 Life for Rent tour.