It has been revealed that mentors on this year’s X Factor will pick from eight acts rather than six during the Judges’ houses phase of the competition.

ITV also confirmed reports that the upper age limit for the boys’ and girls’ categories has been increased to 28 “to strengthen the competition and talent”.

A  statement from the show read: “Here at The X Factor we’re never ones to rest on our laurels. If something needs a mix up to keep the show fresh and exciting, then that’s exactly what we’ll do!

“Last year we added a live audience to the auditions, this year it’s Boot Camp that’s bringing about some changes.”

It continued: “Instead of the usual six, eight acts will now go through to the Judges’ Houses stage so that Cheryl and Dannii, having missed the auditions, will have the opportunity to choose their finalists from a wider range of talent.”