It’s been a dramatic season for the singing competition series, between the sudden exit of one of the bands, a petition against a rapper, and increased fixing allegations. Last week, Birmingham-born singer Relley C got cut and now nine acts remain. This week, the theme is (rather conveniently) Fright Night, so expect the contestants to be dressing up and getting spooky. Bruno Mars will also be performing this week. Louis Walsh, Nicole Scherzinger, Sharon Osbourne and Simon Cowell continue as the judges, while Dermot O'Leary hosts.