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
Love Machine (Girls Aloud song) official Girls Aloud singles boxset; this version was sung by band members Cheryl Cole, Nadine Coyle and Sarah Harding only, and featured radically different lyrics from the released version, even excluding the phrase "Love Machine". One of the song's lyrics, "What will the neighbours say / This time?" inspired the album's title, and it is a reference to Girls Aloud's debut single, where Cole sings, "Neighbours banging on the bathroom wall". MusicOMH contributor John Murphy noted the track uses "a guitar line that sounds like it's been nicked from an old rockabilly tune", and compared its composition to other "'80s