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 "The Guardian" labeled it "the best pop single of the last decade". The release was followed by a cover of Dee C. Lee's "See the Day", released in the Christmas week of 2005., following this they presented one-off TV Special, Christmas Mania, on ITV, where they sang songs taken from their Christmas album. Girls Aloud won the Heart Award for the single at the O Silver Clef Lunch. The group travelled to Australia and New Zealand in February 2006 to release "Biology" and "Chemistry". Despite, a one-week promotional tour, "Biology" peaked at number twenty-six on the ARIA Singles Chart, failing