Lapdance ... Britney Spears lookalike Lorna Bliss - The Sun

Lorna Bliss, who has splurged £170,000 copying the US star’s look, shocked judges on Britain’s Got Talent last year in a thong and diamanté bodystocking.

And oops, she did it again at this week’s X Factor auditions as her raunchy routine left the judges open-mouthed.

Lorna, this time wearing a white bodystocking, crawled across the judges’ desk and made Louis blush as she WRITHED around on his lap.

Seeing her antics, head judge Gary Barlow, fearing he was next in line for some saucy action, ran off.

But Lorna wouldn’t let him escape and CHASED after him.

Tulisa Contostavlos and guest judge Nicole Scherzinger watched the antics with amazement.

And fans were stunned as the pair ran around London’s O2 Arena.

One tweeted: “Omg. Lorna Bliss. Never laughed so much. Louis got a facefull ;-).”

Frisky Lorna performed a sexually-charged routine to Britney’s song Toxic on BGT.

And she caused controversy when Simon Cowell over-ruled judges Amanda Holden, Michael McIntyre and David Hasselhoff and put her through to the semi-finals of the ITV1 show.

Shocked ... Louis Walsh

Rex

She was later embroiled in a furious row with former X Factor contestant and rival Britney impersonator Kitty Brucknell.

Lorna accused Kitty of stealing boyfriend Danny Lopez â€" a Johnny Depp lookalike.

BRAVE Stevie Clift overcame her fears to audition. She was traumatised after being attacked by a gang who stubbed out cigarettes on her FACE. It left her too afraid to perform for six years.