Absolutely Scha-mazing! Nicole Scherzinger dazzles in a sexy side split dress with a revealing gold bralet on debut X Factor live show

She last graced our screens as a judge on The X Factor in 2013.

And Nicole Scherzinger ensured she made a powerful sartorial statement for her grand return to the ITV programme's live shows on Saturday night, stepping out onstage in a stunning side split gown with a daring cut-away panel.

The 38-year-old beauty was given some serious competition in the style stakes by Sharon Osbourne, 63, who put on a very glamorous display in a red lace number.

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Stunning: Nicole Scherzinger ensured she made a powerful sartorial statement for her grand return to the ITV programme's live shows on Saturday night

Stunning: Nicole Scherzinger ensured she made a powerful sartorial statement for her grand return to the ITV programme's live shows on Saturday night

Golden girl: The one-shoulder number featured a dramatic gold halterneck style and a metal-encrusted bra, showing off a liberal amount of skin

Golden girl: The one-shoulder number featured a dramatic gold halterneck style and a metal-encrusted bra, showing off a liberal amount of skin

All eyes were on Nicole as she stepped out onto the stage, dazzling in her slinky black gown with a daring slit snaking up her left thigh.

The one-shoulder number featured a dramatic gold halterneck style and a metal-encrusted bra, showing off a liberal amount of skin.

The former Pussycat Dolls singer completed her attire with a pair of gold earrings, styling her long locks in a straight style.

Slinky: All eyes were on Nicole as she stepped out onto the stage, dazzling in her slinky black gown with a daring slit snaking up her left thigh

Slinky: All eyes were on Nicole as she stepped out onto the stage, dazzling in her slinky black gown with a daring slit snaking up her left thigh

Red hot: The 38-year-old beauty was given some serious competition in the style stakes by Sharon Osbourne, 63, who put on a very glamorous display in a red lace number

Red hot: The 38-year-old beauty was given some serious competition in the style stakes by Sharon Osbourne, 63, who put on a very glamorous display in a red lace number

Not one to be outdone, Sharon ensured she stood out by donning a stunning red lace dress with a modest high neckline.

The showbiz matriarch upped the glamour with a pair of dazzling silver chandelier earrings and a statement cocktail ring.

The red hot look was a departure from Sharon's usual sharp suits and menswear inspired ensembles.

Bling: The showbiz matriarch upped the glamour with a pair of dazzling silver chandelier earrings and a statement cocktail ring

Bling: The showbiz matriarch upped the glamour with a pair of dazzling silver chandelier earrings and a statement cocktail ring

Boyband trio 5 After Midnight kicked-off the first live show to high praise - with Nicole responding flirtatiously.

Singing and dancing in a provocative manner, she nearly fell out of her revealing dress which was designed to show off her cleavage.

Anticipating the wardrobe malfunction, Sharon covered Nicole's cleavage, which left both red-faced. 

Getting into the swing of things: Singing and dancing in a provocative manner, she nearly fell out of her revealing dress which was designed to show off her cleavage

Getting into the swing of things: Singing and dancing in a provocative manner, she nearly fell out of her revealing dress which was designed to show off her cleavage

Clarifying her intention, Sharon said: 'I'm covering her breasts in case they fall out!'.

Blushing at the unwelcome attention, the brunette beauty seemed a little awkward at the exchange - especially when Simon Cowell chimed in.

'There's something stirring inside me after that', he joked with a smirk on his face. 

Kicking things off in style: Simon Cowell, Nicole, Sharon and Louis Walsh amped up the action for the live studio audience 

Kicking things off in style: Simon Cowell, Nicole, Sharon and Louis Walsh amped up the action for the live studio audience 

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