Watch The X Factor Season 12 Episode 4 Online
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- Subtitles: English
Caroline Flack and Olly Murs present further coverage of the audition process, as another batch of applicants perform in front of judges Simon Cowell, Cheryl Fernandez-Versini, Nick Grimshaw and Rita Ora, as well as an arena audience of thousands, in the hope of winning one of the coveted places at the Boot Camp
