What Makes You Beautiful, which has been written by Rami Yacoub along with Savan Kotecha and Carl Falk, is not set for digital release until September 11 - with the physical single hitting shops the next day - but already excitement around the boy band, who were runners-up in the 2010 X Factor final, is mounting, as the eighth series of the TV talent show premieres this Saturday on ITV.

Takhar said he was hopeful the track would debut at ...