Barlow: I'm the tough one on X Factor

Gary Barlow admits he is a very "tough" 'X Factor' judge.

The Take That singer has joined the panel of the TV talent show alongside Louis Walsh, Tulisa Contostavlos and Kelly Rowland and believes he has a duty to give a realistic picture of how hard it is to establish a music career, and will reject hopefuls he doesn't think have the mental strength to cope.