 On 6 October 2006 , Girls Aloud announced that they would release their first compilation album , following rumours that they would split after Chemistry ( 2005 ) . A limited edition of The Sound of Girls Aloud was released in the United Kingdom on 23 October . The limited edition included a bonus disc with alternate edits of the group 's previous singles " No Good Advice " and " Wake Me Up " , and unreleased tracks , including a cover of " Sacred Trust " , originally recorded by fellow Popstars : The Rivals contestants One True Voice . The bonus disc was also going to include a cover of Chris Isaak 's " Wicked Game " , however , the track did not make onto the final track listing . 
