Cheryl (singer) first contestant to qualify for the girl group, and was joined by Nadine Coyle, Sarah Harding, Nicola Roberts and Kimberley Walsh to form Girls Aloud, following the final public vote. The group's debut single "Sound of the Underground" peaked at number one on the UK Singles Chart, becoming the 2002 Christmas number one over boy band One True Voice's "Sacred Trust / After You're Gone". Girls Aloud hold the record for the shortest time between being formed as a band and achieving a number one single. Girls Aloud released their debut album "Sound of the Underground" in May 2003, which
Girls Aloud movie, "St Trinian's". They also made a cameo appearance in the film as the school band. The was released on 10 December 2007, and the video for "Theme to St. Trinian's" premiered in December 2007. In November 2008, Girls Aloud released their fifth studio album and would be their final studio album "Out of Control", which entered the UK Albums Chart at number one and became their most successful studio album to date, being certified double platinum. The album's lead single, "The Promise", became the group's fourth number one on the UK Singles Chart. The single also returned the group