Kate introduces the show from bootcamp where the acts who have made it through from the auditions learn for the first time which of the judges will be their mentor. Sharon is the mentor for the over 25's while Louis is the mentor for the under 25's leaving Simon in charge of the groups. By the end of the first day each judge has to whittle down the amount of people in their section of the competition even further leaving many of the hopefuls disappointed that the competition ends here for them.
Each X Factor judge is in charge of a different section of singers on the show. The judges do not know what section of the competition they will be in charge of until the audition process has finished. Each judge then has to pick four acts to take forward to the live section of the show. Each week the two acts with the lowest amount of public votes have to sing again in a final showdown after which the judges decide who should be eliminated. Once there are only five acts left remaining it becomes left to the public to decide who should go.