Diana Vickers (born 30 July 1991) is a British singer-songwriter, actress, fashion designer and model who initially came to public attention as a semi-finalist on The X Factor in 2008. In January 2009 Vickers signed a record deal with RCA Records and after touring with her fellow finalists from The X Factor until March 2009, began work on her debut album, Songs from the Tainted Cherry Tree, until September 2009.

From October 2009 to January 2010 Vickers played the title role in a West End revival of The Rise and Fall of Little Voice for which she won the award for "London Newcomer of the Year" at the Theatregoers' Choice Awards. Vickers' debut single, "Once", charted at number one on the UK Singles Chart after its release on 19 April 2010 and has sold over 220,000 copies in the United Kingdom. Vickers' debut album was released on 3 May 2010 in the United Kingdom achieving number one status on the UK Albums Chart, number seven on the Irish Albums Chart and number four on the European Top 100 Albums, and has been certified Gold by the BPI. Songs from the Tainted Cherry Tree went on to sell over 300,000 copies in the United Kingdom.