She's got the moves! Frankie Sandford takes to the stage with The Saturdays at Wembley Arena... as she prepares for ballroom debut on Strictly Come Dancing

Frankie Sandford treated fans to a raunchy display as she took to the stage with The Saturdays on Friday evening – two weeks before she takes to the ballroom floor.

The 25-year-old, confirmed as a celebrity contestant on the new series of Strictly Come Dancing, was performing at Wembley Arena as the band prepare to wind down their latest UK tour this Sunday.

Sporting a cropped bralet, gold fringed miniskirt and fishnet tights, Frankie showed off some polished moves as The Saturdays worked their way through a hit-heavy set-list – much to the delight of those in attendance.

The five-piece, which also includes Rochelle Humes, Vanessa White, Mollie King and Una Foden, all wore coordinated looks complete with bejwelled, bustier-style necklines.

Frankie, a mother-of-one to son Parker with footballer husband Wayne Bridge, will swap the stage for dancefloor in two weeks when Strictly returns for a 12th series.

Already partnered with professional dancer Keven Clifton, Frankie recently told MailOnline she was nervous about making her first ballroom appearance on the hit BBC show.

‘For me picking things up has been alright – that hasn’t really worried me,’ she said. ‘But just getting it technically right, being in a band, with the kind of dancing we do, you can kind of style it the way you want it to be but with this it has to be a certain way and that’s going to be tough.’

She added: ‘I’m scared of falling over. It’s something I’ve done a lot on live TV shows and I normally get away with it.

‘Normally they just look at someone else but with this if I fall over it’s literally like ‘She’s gone down in front of everyone’ and there’s not really any way of covering that up, so that’s what I’m scared of.’

Fortunately the singer will have the full back on of her band mates – and she admits they’ll be in the studio audience when she takes to the dance floor with Kevin.

‘They just want to come down and watch,’ she said. ‘Luckily both our bands are really supportive of us when we go off and do our separate things.’

The Saturdays tour will wrap on Sunday, after kicking off on September 7 in Glasgow before taking in Newcastle and Sheffield.