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
The Promise (Girls Aloud song) theme song of his 1980s British TV quiz show "Blankety Blank". "The Promise" was honoured as Best British Single at the 2009 BRIT Awards, Girls Aloud's first win at the ceremony. The song was also nominated for PRS for Music's Most Performed Work at the 2010 Ivor Novello Awards. It was also awarded the Popjustice £20 Music Prize. "The Promise" entered the UK Singles Chart at number one, knocking off Pink's "So What" from the top. Early midweek figures suggested that the song was outselling "So What" by nearly two to one. "The Promise" is Girls Aloud's first original number