Louis Walsh: 'One Direction have split for good'

With tears in her eyes, Nicole said Burrows "got" her, and joined the other judges in giving him a place at Bootcamp.

Sharon Osbourne also had "filming commitments" - meaning that she couldn't attend the event.

Calvin Harris is set to return to "The X Factor".

Walsh was replaced by DJ Nick Grimshaw on the judging panel previous year.

The show also sees the return of Emily Middlemas, 17, from Glasgow, who got to judges' houses in 2014 at the age of 15 but didn't make it any further.

New hosts Caroline Flack and Olly Murs frequently looked out of their depth, getting things wrong and being so nervous that even viewers at home felt uncomfortable for them.

This time, it's back to the room auditions - more intimate, and perhaps even more intimidating, with no crowd to distract hopefuls from the cold stares of Cowell and co.

The Irishman returns to the judging panel alongside Simon Cowell, Nicole Scherzinger, and Sharon Osbourne.

While his One Direction band mates have been using the group's extended hiatus to focus on solo projects, Niall Horan has primarily simply enjoyed the downtime...

Formerly The Xtra Factor, this year's companion programme - which airs on ITV2 after each episode - will be live for the first time.

"Last year the show was losing ratings and they've brought it back to basics this year, and that's what they needed to do".

Speaking at the show's London press launch, O'Leary said: "She works the hardest".

Simon Cowell has lifted star DJ Calvin Harris ' "lifetime ban" from the X Factor studios.

He is now on the judging panel of "America's Got Talent" alongside Mel B, Heidi Klum and Howie Mandel, which is hosted by Nick Cannon. "It's a really good laugh", Rylan said to reassure fans that everything is under control. "To be honest, when I made the call to leave I thought that the ship has sailed".

"This is not a diss to the show - this is not me storming out of X Factor going 'Screw you Cheryl!' - it's a great show and I loved it", Grimshaw said.