While that's a 56.6% dip on the track's first week sales tally, it is more than three times the 68,736 copies that Rage Against The Machine's Killing In The Name sold in the week.

The 14th number one by an X Factor act, McElderry's single also improves 15-6 on the year-to-date rankings, with sales to date of 646,567. The track has an outside chance of snatching the title of the year's biggest selling single from Lady GaGa's Poker Face. With ...