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 to break the group in the Australian market. "Whole Lotta History", the fourth and final single to be taken from "Chemistry", was released in March 2006 and charted at number six. In 2005, Girls Aloud filmed a one-off documentary entitled "" for ITV2. The success of the show later made way for "", a six-part fly on the wall documentary series for E4. Girls Aloud then appeared in an episode of "Ghosthunting with..." (without Nadine) towards the end of 2006, in which Yvette Fielding guided them through haunted locations. In May 2006, Girls Aloud embarked on their first arena tour,