She was given the girls category (made up of female solo contestants aged 16 to 25) and subsequently ended up as the winning judge when Alexandra Burke was crowned the winner of series five on 13 December. Reid, and Paula Abdul on the judging panel of the American version of The X Factor.
This was the first series in which she was not the winning mentor, when Rebecca Ferguson finished as runner-up to Matt Cardle, who was mentored by Minogue. In December 2012, Cheryl sued the American producers of The X Factor for .3 million (£1.4m).
She was picked to appear as a dancer in the video after taking streetdancing classes during the filming of ITV2 series The Passions of Girls Aloud.
The first single from the album, "Fight for This Love", was written by Andre Merritt, Steve Kipner and Wayne Wilkins, and produced by Kipner and Wilkins.
Two of their albums reached the top of the UK Albums Chart: their greatest hits album The Sound of Girls Aloud and 2008's Out of Control, both of which entered the chart at number one, with over one million copies of the former being sold.
The group's musical style was pop, but throughout their career they experimented with electropop and dance-pop.
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".
Cheryl auditioned for the reality television show Popstars: The Rivals in 2002, which aimed to create a boy band and a girl group to compete for the Christmas Number One spot on the UK Singles Chart.
She sang "Have You Ever" in her audition, and was one of twenty contestants (ten girls and ten boys) chosen as finalists by judges Pete Waterman, Louis Walsh and Geri Halliwell.
Guinness World Records lists them as "Most Successful Reality TV Group" in the 2007 edition.
They also hold the record for "Most Consecutive Top Ten Entries in the UK by a Female Group" in the 2008 edition, and are credited again for "Most Successful Reality TV Group" in the 2011 edition.
She returned to judge series 11 and 12 of the UK version.