Louis Walsh has described The X Factor 2011 boot camp as the toughest the show has ever done, with contestants singing from 8AM in morning until 2AM the next day. Speaking at yesterday's X Factor launch, Louis promised viewers they'd be surprised by the changes.
"It's the toughest bootcamp we've ever done, we left at 2AM the other morning, we started at 8AM! It's full yon, we're working them harder than we have ever," Louis said on yesterday's red carpet.
He continued: "Honestly, it's bigger and it's better, you're going to be surprised.
"The talent is really, really good this time... the girls are incredibly strong we're working them harder than we've ever worked before."
The hard work continues today as the remaining 40 or so bootcamp hopefuls perform in front of 10,000 fans - and judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis - at London's Wembley Arena.
Contestants still in the competition have been given a list of around 30 songs to perform, with tracks including Kelly Rowland's own When Love Takes Over, Adele's smash hit Rolling In The Deep, Lady GaGa's Edge of Glory and Rihanna's Unfaithful.
But the list also includes some less mainstream tracks, including Bon Iver's Skinny Love.
The X Factor 2011 bootcamp kicked off on Sunday with some hopefuls being kicked out before they even had a chance to sing.
"We don’t believe everyone standing in front of us has the potential to make it all the way in this competition,” he explained. “Some of you are going home now. I’m so sorry – you’re going home.”
Kelly Rowland continued: “While you were partying last night, we were looking at your audition tapes.
“We only want to work with the people who can go all the way.”
But hopefuls have blasted the "cruel" process, with one reject saying this morning: "We were told one group was going home. All the other groups had the big characters in them, so I knew it was my group.
"It was agony. I told them, 'How could you not even let me sing? It's cruel'. I bet they don't show that."
The X Factor 2011 starts on Saturday on ITV1.