Sarah Harding participating in weekly Saturday night live performances (alternating weekly between the girls and boys). Each week the contestant polling the fewest phone votes was eliminated, until the final line-ups of the groups emerged. Harding joined Nadine Coyle, Cheryl Tweedy, Nicola Roberts, and Kimberley Walsh to comprise the new girl group Girls Aloud, formed through the show by a public vote on 30 November 2002. The group's debut single "Sound of the Underground" peaked at number one on the UK Singles Chart, becoming the 2002 Christmas number one. Girls Aloud hold the record for the shortest time between formation and reaching
Girls Aloud mainstream British pop could get in the noughties, play them this." In 2009, "The Times" included 2007's "Tangled Up" at number 62 on a list of the decade's best pop albums, while the "Daily Mail" listed it as the twentieth best album of the decade. MSN listed 2005's "Chemistry" as one of the decade's best albums. Girls Aloud are also notably one of the few British reality television acts to achieve continued success and longevity. According to "The Times", Girls Aloud are the highest-earning UK reality television stars, having amassed a fortune of £25 million by May 2009. The figure