After weeks of auditions, the final 12 have been chosen and it is at last time for them to perform in the live shows. This year sees Simon Cowell mentoring the Overs, Cheryl Fernandez-Versini the Groups, Nick Grimshaw the Boys, and Rita Ora the Girls. No doubt they're all delighted to have made it so far, but sadly the journey will already be over for one of them tomorrow night when the first act is sent home to return to their day job. That's the way the X Factor cookie crumbles.