The X Factor's back...

Old hand Louis Walsh is joined by Tulisa Contostavlos, Kelly Rowland and a very cruel Gary Barlow on the judging panelYou're right to feel trepidation ahead of Saturday's X Factor. Thanks to X Factor USA, the entire dynamic of the UK show has been skewed. No longer will Simon Cowell swish around in a shirt undone to his pubis. No longer will Cheryl Cole burst into tears each time one of her acts