Simon has got to replace Mel with Demi Lovato - please make this happen. Demi and Cheryl are good friends, and the whole 'Dimon' relationship is electric. If it's possible, bring in Louis Tomlinson in place of Louis Walsh, and then you've got a current, fresh, youthful and fun panel of judges: Simon, Demi, Cheryl and Louis T. If Louis' schedule is too demanding, put Olly on the panel (good friends with all the judges, inc. Demi), and have Greg James / Nick Grimshaw join Caroline as the show's presenters.