Billie Paul Piper is an English actress and former singer. She initially gained recognition as a singer after releasing her debut single "Because We Want To" at the age of 15, which made her the youngest female singer to enter the UK Singles Chart at number one. Her follow-up single "Girlfriend" also entered at number one. In 1998, Piper released her debut studio album, Honey to the B, which was certified platinum by the British Phonographic Industry (BPI). Her second studio album, Walk of Life, was released in 2000 and spawned her third number-one single, "Day & Night". In 2003, Piper announced that she had ended her music career to focus on acting.
Piper appeared in the BBC One sci-fi series Doctor Who as Rose Tyler, companion to the Doctor, as a regular from 2005 and 2006, and made guest appearances in 2008 and 2010.