Sacred Trust / After You're Gone competed for the number one position in the Christmas week issue of the UK Singles Chart, and Girls Aloud came out on top with their song "Sound of the Underground". Girls Aloud later released their own version of "Sacred Trust" on the rarities disc of their 2006 greatest hits album "The Sound of Girls Aloud". "Sacred Trust / After You're Gone" debuted at number two on the UK Singles Chart on December 22, 2002, the same day that their rivals Girls Aloud reached number one with "Sound of the Underground". The single sold 147,000 copies compared to first week sales
Girls Aloud edition. The group was also named the United Kingdom's biggest selling girl group of the 21st century, with over 4.3 million singles sales and 4 million albums sold in the UK alone. In March 2013, after the , the group announced their split. The group Girls Aloud was formed on 30 November 2002, in front of millions of viewers on ITV's "". The concept of the programme, hosted by "Big Brother" presenter Davina McCall was to produce a boyband and a girlgroup who would be "rivals" and compete for the 2002 Christmas number one single. Following the initial success of