Alexandra Burke thinks about X Factor new judge Tulisa Contostavlos

Alexandra Burke thinks about X Factor new judge Tulisa Contostavlos will give the X Factor 'swagger and edge'.

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The singer thinks N-Dubz star Tulisa as a judge and mentor on the job when the program will return on Saturday - programs other judges, past or present to any one will feel very different.

She said: 'Tulisa will give it that swagger and edge no other judge has ever been able to give. She knows what the kids want and what's cool and she's going to give the show a whole new edge. She'll produce some great acts.'

The Hallelujah hitmaker, was former judge Cheryl Cole in 2008, mentored by the show was to win - also thinks Take That star Gary Barlow's panel that Kelly Rowland, former Destiny's Child singer and judge Louis Walsh are returning will be a great addition.

She added: 'When I found out Gary Barlow was going to be a judge I was like, "Gary Barlow all the way".

'I think the new line-up will be fantastic for the show, it's fresh.'

It was also announced today that the final show in London for the first time in 12,500 capacity Wembley will take place.

Alex added: 'We can finally put the rumours to be and I can confirm that The X Factor final will be held at Wembley Arena.

'Everyone wants to go to the final and it means thousands of people can go rather than a couple of hundred like before.'

Alexandra Burke is not sure which song to release as a single from her new album

Alexandra Burke is not sure what song for her new album that Simon Cowell Syco record label to release.

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The 22-year-old said he has "taken risks" with her highly anticipated second album.

She told Body Confidential: "The first single is in the mix.

"I'm yet to decide which one of two songs it will be.

"One's a duet and one's not. When they're both mixed I'll have to see which one sounds amazing in my car because that's the best way to test it.

"In a couple of weeks it will be on the radio.

"The album is now completely finished. It's got a couple of names at the moment, but we haven't done the tracklisting yet."

Alex also insisted that he was closely involved with the album's production.

She added: "I've taken loads of risks with it and I'm the executive producer too. With the first album when songs were being mixed, Simon [Cowell] was the one who picked the tracklisting. But with this one, I haven't let anything go past these ears.

"I approve everything."