The Greatest Hits Tour (Girls Aloud) a fabulous Sound of the Underground." The Greatest Hits Tour (Girls Aloud) The Greatest Hits Tour was the third concert tour by Irish and British girl group Girls Aloud, in support of their first greatest hits album "". Girls Aloud returned to Northern Ireland and the Republic of Ireland, having not performed there on 2006's . The band performed sixteen dates in various arenas across the United Kingdom and Ireland, making it their second arena tour. The Sound of Girls Aloud: The Greatest Hits Tour kicked off in Cheryl Cole's hometown of Newcastle on 14 May 2007 and concluding in
Girls Aloud movie, "St Trinian's". They also made a cameo appearance in the film as the school band. The was released on 10 December 2007, and the video for "Theme to St. Trinian's" premiered in December 2007. In November 2008, Girls Aloud released their fifth studio album and would be their final studio album "Out of Control", which entered the UK Albums Chart at number one and became their most successful studio album to date, being certified double platinum. The album's lead single, "The Promise", became the group's fourth number one on the UK Singles Chart. The single also returned the group