Girls Aloud by Louis Walsh until 2005 when Hilary Shaw replaced him. The new group competed with the boys' winning group, One True Voice to have 2002's Christmas number one single. Girls Aloud won the battle with their single "Sound of the Underground", produced by Brian Higgins and Xenomania. The song spent four consecutive weeks at number one and was certified platinum in March 2003. The song received critical acclaim; Alexis Petridis of "The Guardian" stated that "it proved a first: it was a reality pop record that didn't make you want to do physical harm to everyone involved in its manufacture".
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