Kate Moss’ long-rumoured appearance on The X Factor has finally been confirmed by Simon Cowell’s brother, Tony, Real Radio reports. Supermodel Kate – a superfan of the show - has been tapped to appear as Louis Walsh’s assistant during the stage where judges whittle their categories down from six acts to three. "The deal is done and dealt with, she's definitely going with him. They are going to Tuscany - I think they are actually there as we talk and starting bringing the final 24 down to the top 12," Tony explained. "So, yes, it is Kate Moss, and Cheryl has Will Young alongside her whether she wants him or not! And, not surprisingly, Dannii has drafted in her sister." Simon will again do his judging in his LA home, assisted by his ex-girlfriend Sinitta. 
