refund on 'Hero' sales" . Digital Spy . Hachette Filipacchi Médias . http://www.digitalspy.co.uk/xfactor/a134141/darling-tables-tax-refund-on-hero-sales.html . Retrieved 2011-04-13 .   ^ "X Factor Secret Single Revealed" . Daily Star . Richard Desmond . 2008-10-04. Archived from the original on 25 May 2011 . http://www.dailystar.co.uk/news/view/53366/XFactor-secret-single-revealed-Cowell-record-shock-for-fans/ . Retrieved 2011-04-13 .   ^ "X Factor Song To