John & Edward: 'We'll be off the chain'

John & Edward have promised that they will deliver an "off the chain" performance on this Saturday's X Factor.

It was revealed on last Sunday's Xtra Factor that the Irish twins will be singing Ricky Martin's 'She Bangs' as part of Big Band week.

Speaking on the official ITV show website, Edward said: "We're going to be performing on stage with this ultimate big band of professionals, who are top of the game. How cool is that?

"I'm nervous because I feel like we have to prove ourselves every week. I want us to give our best performance."

John added: "If we mess up, then [the big band] mess up, so we have to be really tight. We've got to know exactly what we're doing, so they know exactly what we're doing.

"We're not just going to go out there and sing this song, we're going to go out and give a really big performance. I think there's going to be girl dancers. They'll be dancing, we'll be doing some dancing, it's going to be crazy."

The brothers added: "We're going to have so much fun this week, we can't wait. It's actually going to be huge. If you thought week one or week two were big, week three is going to be off the chain."