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".
Girls Aloud Aloud's second number one single, holding the position for two weeks. The album "What Will the Neighbours Say?" was entirely written and produced by Xenomania. Upon its release on 29 November 2004, the album charted just outside of the top five and was quickly certified platinum. The final single from the album, "Wake Me Up", was released in February 2005. It charted at number four, making it their first to miss the top three. In early 2005, the group was nominated for a BRIT Award for Best Pop Act. Following the album's success, Girls Aloud announced their first tour "What