Girls Aloud continue to up the raunch factor on their UK tour, as they set the stage alight at Glasgow's SECC.

And it was cuckolded wife Cheryl Tweedy who provided the spectacle as she took to the stage in a backless bondage-style bustier which left little to the imagination.

Teamed with saucy fishnet tights and cascading hair extensions Cheryl appeared to be in her element as she wowed the sell-out crowd.

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Fishnets and corset: Cherly Cole ups the raunch factor as she appeared onstage at Glasgow's SECC in the briefest of bondage-style outfits last night

The girls have long dropped their squeaky clean image since coming together after winning reality television show Pop Idols: The Rivals.

And Cheryl, whose already tiny figure appeared to get even smaller following her marriage troubles, smiled broadly as she performed a raunchy routine with bandmates Kimberly Walsh, Sarah Harding, Nadine Coyle and Nicola Roberts.

The five girls left little to the imagination as they performed while squeezed into fringed bustiers, reminiscent of Las Vegas showgirls.

It was almost a replay of the gear they wore in Belfast, when they took to the stage in PVC corsets.

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Glamour girls: Girls Aloud continue to leave little to the imagination as they don an increasing number of raunchy outfits on their Tangled Up tour

The girls embarked on their five month long Tangled Up Tour across the UK last week.

Cheryl Cole joined the group, although there was some doubt about whether she would following her headline-grabbing marriage troubles.

And bandmate Kimberley earned brownie pints for holding it together despite falling ill with a sickness bug.

Cheryl told The Sun: "Kimberley has been vomiting all morning so we are very proud of her for getting up here tonight.

"She's definitely our little trouper."

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Wild hair and fishnets: Sarah Harding puts on some Las Vegas style glitz in her showgirl inspired outfit at last night's Glasgow gig

The girls 19-song set included a cover of Swedish singer Robyn's With Every Heartbeat, Salt 'N' Pepa cover Push It and their encore track Something Kinda Ooooh.

And in a clear nod to Cheryl's troubles, the girls also sang I'll Stand By You, originally recorded by The Pretenders, which the Newcastle-born songstess dedicated to those experiencing emotional troubles.

She added: "I wanted to reach out to the people who are going through tough times in relationships."

The Tangled Up Tour ends on Calne in Wiltshire on September 14.

Nadine Coyle performs one of the group's 19 songs in front of a glaring white TV screen