Flexible Fergie, 42, displays her incredibly limber figure as she does the splits in TINY mini-dress and killer thigh-high boots at Christmas concert

She's rocked stages all over the world, both as a solo artist and with The Black Eyed Peas.

And singer Fergie, 42, proved she's still as sensational as ever as she took to the stage for BLI's FaLaLaLaLaLaLa Fest  in the Big Apple on Sunday. 

The London Bridge performer put on a jaw-dropping display as she got dangerous low in a perfect split while belting out her famous hits. 

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Festive: And singer Fergie, 42, proved she's still as sensational as ever as she took to the stage for BLI's FaLaLaLaLaLaLa Fest in the Big Apple on Sunday

Festive: And singer Fergie, 42, proved she's still as sensational as ever as she took to the stage for BLI's FaLaLaLaLaLaLa Fest in the Big Apple on Sunday

Fergie, real name Stacy Ferguson, slipped her impeccably toned body into a skin-tight black vest and tiny matching shorts, showcasing her fantastic pins.

Looking as chic as ever, the musical mum hit the floor in sparkling grey thigh-high boots, which effortless complemented her metallic green jacket with racy cutouts and strap embellishments. 

Fergie kept her trademark blonde tresses cropped and glamorously textured, while her smokey eyes and glossy pink lip exuded sophistication. 

Letting her eye-catching ensemble do the talking, she finished off her gorgeous look with delicate knuckle-duster-inspired rings. 

Flexible: The London Bridge performer put on a jaw-dropping display as she got dangerous low in a perfect split while belting out her famous hits

Flexible: The London Bridge performer put on a jaw-dropping display as she got dangerous low in a perfect split while belting out her famous hits

Glamorous: Fergie, real name Stacy Ferguson, slipped her impeccably toned body into a skin-tight black vest and tiny matching shorts, showcasing her fantastic pins

Glamorous: Fergie, real name Stacy Ferguson, slipped her impeccably toned body into a skin-tight black vest and tiny matching shorts, showcasing her fantastic pins

Getting low: Looking as chic as ever, the musical mum hit the floor in sparkling grey thigh-high boots, which effortless complemented her metallic green jacket with racy cutouts and strap embellishments

Getting low: Looking as chic as ever, the musical mum hit the floor in sparkling grey thigh-high boots, which effortless complemented her metallic green jacket with racy cutouts and strap embellishments

The crowd goes wild:  Letting her eye-catching ensemble do the talking, she finished off her gorgeous look with delicate knuckle-duster-inspired rings

The crowd goes wild:  Letting her eye-catching ensemble do the talking, she finished off her gorgeous look with delicate knuckle-duster-inspired rings

Perfect performer: Fergie kept her trademark blonde tresses cropped and glamorously textured, while her smokey eyes and glossy pink lip exuded sophistication

Perfect performer: Fergie kept her trademark blonde tresses cropped and glamorously textured, while her smokey eyes and glossy pink lip exuded sophistication

Fergie cut a more casual style as she arrived at NYC's JFK airport in an eye-catching leopard print jacket and black cross beanie earlier on that day. 

Showcasing her signature sophisticated style, she held onto a Givenchy tote bag as she checked in for her flight. 

The American singer looked sensational as she paired her casual denim shirt with skintight leather leggings, which showed off her toned legs.

Chic: Fergie put on a brave face as she arrived at New York's JFK airport in an eye-catching leopard print jacket and black cross beanie on Sunday

Chic: Fergie put on a brave face as she arrived at New York's JFK airport in an eye-catching leopard print jacket and black cross beanie on Sunday

She accessorised with an artichoke green scarf embellished with heart designs, and her striking feline jacket.

Her mid-length platinum tresses were partly hid underneath a black cross-emblazoned beanie as she stood on simple ankle boots.

The Big Girls Don't Cry hitmaker framed her stunning face with circle-shaped sunglasses, while sporting taupe lipstick.

On the go: The American singer looked sensational as she paired her causal denim shirt with fitted glossy leggings, an artichoke green scarf embellished with heart designs, and her striking feline jacket

On the go: The American singer looked sensational as she paired her causal denim shirt with fitted glossy leggings, an artichoke green scarf embellished with heart designs, and her striking feline jacket

Stylish: The Big Girls Don't Cry hitmaker framed her stunning face with circle-shaped sunglasses, while sporting light brown lipstick

Stylish: The Big Girls Don't Cry hitmaker framed her stunning face with circle-shaped sunglasses, while sporting light brown lipstick

This appearance shortly followed her confession on the debilitating effects of her drug addiction to methamphetamine, commonly known as crystal meth.

During Fergie's humble beginnings, the recording artist suffered from symptoms of psychosis and dementia due to her dependency.

She went into specific detail in an interview with i newspaper about the after effects of the strong stimulant: 'At my lowest point, I was [suffering from] chemically-induced psychosis and dementia.'

The mother-of-one announced her split from husband Josh Duhamel after an eight-year marriage in September, and discussed the difficulty of juggling work and separation struggles.

Before: Fergie developed her addiction while  in  girl group Wild Orchid, which followed her after she left the group in 2001

Before: Fergie developed her addiction while in girl group Wild Orchid, which followed her after she left the group in 2001

Former lovers: The mother-of-one announced her split from husband Josh Duhamel after an eight-year marriage in September

Former lovers: The mother-of-one announced her split from husband Josh Duhamel after an eight-year marriage in September

'I've just released my first solo album in 11 years, and I'm out promoting it. So there's really a lot going on. That's why we wanted to find our footing with our separation before we announced it publicly: to make sure we really got it together for our kid.'   

She recently hit back at claims that she's left the Black Eyed Peas - insisting that she'd relish the opportunity to record another album with her old bandmates.

She said: 'I've never left The Black Eyed Peas. We've never broken up officially, I guess we're just on a break. We're family. They're like my work family. That's forever. 

'Honestly, I would have loved to be able to do my album in one tenth of the time, do a Black Eyed Peas album in that same time, tour both, have another child. There's just not enough hours in the day.'

The blonde beauty, who released her second solo studio album, Double Dutchess, in September is now focused on creating a music video for every single on the compilation, which she called a 'labour of love'. 

Back in the day: She recently hit back at claims that she's left the Black Eyed Peas - insisting that she'd relish the opportunity to record another album with her old bandmate

Back in the day: She recently hit back at claims that she's left the Black Eyed Peas - insisting that she'd relish the opportunity to record another album with her old bandmate

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