Cheeky night out! Rita Ora flashes her derrière in tiny mini-dress and thigh-high boots as she parties with Kate Moss at Nick Grimshaw's birthday bash

She's known for her rather risqué ensembles, and her outfit on Friday night was no exception.

Rita Ora was seen putting on quite the leggy display as she partied at Soho House in London for Nick 'Grimmy' Grimshaw's 31st birthday.

The 24-year-old singer - who's a judge on The X Factor, along with the birthday boy - certainly turned heads in her daring ensemble, as she left the bash arm-in-arm with supermodel Kate Moss, 41.

Scroll down for video 

Bombshell: Rita Ora was seen putting on quite the leggy display as she partied at Soho House in London for Nick 'Grimmy' Grimshaw's 31st birthday on Friday night

Bombshell: Rita Ora was seen putting on quite the leggy display as she partied at Soho House in London for Nick 'Grimmy' Grimshaw's 31st birthday on Friday night

Take it to the max in Rita's over the knee boots by Versace

Being an international celebrity befriender, Nick 'Grimmy' Grimshaw's birthday bash was always going to be a star-studded affair.

And we certainly weren't disappointed, with Kate Moss, Caroline Flack, Olly Murs and the lovely Rita Ora turning up for the celebrations.

As ever, we're seriously feeling Rita's aura, and have definitely got our beady eye on those fabulous over the knee bad boys.

They're by Versace and we love the gold platform with the iconic house of Versace logo. They're one seriously statement pair of boots, and we would pair them with a simple LBD to highlight the wow factor.

Click the link (right) to buy them in black at Farfetch. Or check out what the rest of the virtual high street has to offer in the thigh high boots department. The Stuart Weitzman option(below) is always a favorite among celebs, or this Jeffrey Campbell version will do the trick.

* PRICES MAY NOT BE AS ADVERTISED

Rita donned a thigh-skimming mini-dress emblazoned with the superhero, Captain America.

The long-sleeve, high-neck dress covered up her cleavage - which was on full-display at the MTV VMAs at the weekend - but her pins took centre-stage.

She styled the mini-dress with a pair of thigh-high boots, which featured a gold platform to add height to her petite 5ft 4in frame.

BFFs: The 24-year-old singer - who's a judge on The X Factor, along with birthday boy Grimmy - certainly turned heads in her daring ensemble, as she left the bash arm-in-arm with supermodel Kate Moss, 41

BFFs: The 24-year-old singer - who's a judge on The X Factor, along with birthday boy Grimmy - certainly turned heads in her daring ensemble, as she left the bash arm-in-arm with supermodel Kate Moss, 41

Take it to the max in Rita's over the knee boots by Versace

Being an international celebrity befriender, Nick 'Grimmy' Grimshaw's birthday bash was always going to be a star-studded affair.

And we certainly weren't disappointed, with Kate Moss, Caroline Flack, Olly Murs and the lovely Rita Ora turning up for the celebrations.

As ever, we're seriously feeling Rita's aura, and have definitely got our beady eye on those fabulous over the knee bad boys.

They're by Versace and we love the gold platform with the iconic house of Versace logo. They're one seriously statement pair of boots, and we would pair them with a simple LBD to highlight the wow factor.

Click the link (right) to buy them in black at Farfetch. Or check out what the rest of the virtual high street has to offer in the thigh high boots department. The Stuart Weitzman option(below) is always a favorite among celebs, or this Jeffrey Campbell version will do the trick.

* PRICES MAY NOT BE AS ADVERTISED
Flashing her pins: Rita donned a thigh-skimming mini-dress emblazoned with the superhero, Captain America
Hiding her cleavage: The long-sleeve, high-neck dress covered up her cleavage - which was on full-display at the MTV VMAs at the weekend - but her pins took centre-stage

Flashing her pins: Rita donned a thigh-skimming mini-dress emblazoned with the superhero, Captain America

Cheeky! The X Factor judge lost control of her mini-dress as she got into her car, accidentally flashing her derrière

Cheeky! The X Factor judge lost control of her mini-dress as she got into her car, accidentally flashing her derrière

Daring: The Croydon native flashed her bra in a sheer mesh top, which she styled with a pair of black trousers

Daring: The Croydon native flashed her bra in a sheer mesh top, which she styled with a pair of black trousers

Her peroxide blonde locks were styled into a chic, side-parting and neatly straightened to frame her face.

She sported flawless make-up, including a matte complexion, killer cheekbones, smokey eyes and her ubiquitous red lipstick.

Mother-of-one Kate - who, along with Rita, is the face of Rimmel London cosmetics - was spotted leaving the bar arm-in-arm with the blonde beauty. 

Make-up besties: Mother-of-one Kate - who, along with Rita, is the face of Rimmel London cosmetics - was spotted leaving the bar arm-in-arm with the blonde beauty

Make-up besties: Mother-of-one Kate - who, along with Rita, is the face of Rimmel London cosmetics - was spotted leaving the bar arm-in-arm with the blonde beauty

Model styling: Kate covered up wearing a leather jacket
Handbag queen: Kate kept her belongings close to her in a patent bag with gold chain

Model styling: Kate covered up wearing a leather jacket and kept her belongings close to her in a patent bag with gold chain

Leggy: Rita styled the mini-dress with a pair of thigh-high boots, which featured a gold platform to add height to her petite 5ft 4in frame

Leggy: Rita styled the mini-dress with a pair of thigh-high boots, which featured a gold platform to add height to her petite 5ft 4in frame

The Croydon native flashed her bra in a sheer mesh top, which she styled with a pair of black trousers. 

Kate covered up wearing a leather jacket and kept her belongings close to her in a patent bag with gold chain.

She completed her party look with a pair of black heeled boots.

Suede shoes: Kate completed her party look with a pair of black heeled boots, adding height to her statuesque frame

Suede shoes: Kate completed her party look with a pair of black heeled boots, adding height to her statuesque frame

Blonde beauty: Rita Ora styled her peroxide blonde locks into a chic, side-parting and neatly straightened to frame her face
Bedhead: Kate's hair was looking voluminous for her partyC

Blonde beauty: Rita Ora styled her peroxide blonde locks into a chic, side-parting and neatly straightened to frame her face

Captain Rita: It appears that Rita is something of a Marvel fan as her dress was covered in a Captain America print

Captain Rita: It appears that Rita is something of a Marvel fan as her dress was covered in a Captain America print

Stunning:  Rita sported flawless make-up, including a matte complexion, killer cheekbones, smokey eyes and her ubiquitous red lipstick

Stunning:  Rita sported flawless make-up, including a matte complexion, killer cheekbones, smokey eyes and her ubiquitous red lipstick

The BFFs were spotted leaving Rita's London property in the early hours of Saturday morning, along with former model Jo Wood, 60, and Rita's ex-boyfriend, football agent Dave Gardner.

Jo looked lovely in a black suit while Dave - who's had a son, Sailor, with actress Liv Tyler since splitting from Rita - donned a black leather jacket with black skinny jeans and black brogue shoes. 

Rita had got changed into something more casual, consisting of a ripped black-and-white striped jumper, black skinny jeans, white trainers and black fedora.

Still going: The BFFs were spotted leaving Rita's London property in the early hours of Saturday morning

Still going: The BFFs were spotted leaving Rita's London property in the early hours of Saturday morning

Laid-back: Rita had got changed into something more casual, consisting of a ripped black-and-white striped jumper, black skinny jeans, white trainers and black fedora

Laid-back: Rita had got changed into something more casual, consisting of a ripped black-and-white striped jumper, black skinny jeans, white trainers and black fedora

Ex: Rita's ex-boyfriend Dave Gardner was at her house for the after-party
Hollywood beau: Dave has since had a child, six-month-old Sailor, with actress Liv Tyler, since splitting with Rita

Exes: Also at Rita's house was her ex-boyfriend Dave Gardner, who's had a child (six-month-old son Sailor) with Liv Tyler, since splitting with the star

Classic style: Dave donned a black leather jacket with black skinny jeans and black brogue shoes

Classic style: Dave donned a black leather jacket with black skinny jeans and black brogue shoes

Company: Rita was joined by former model, 60-year-old Jo Wood, for her late-night London shenanigans

Company: Rita was joined by former model, 60-year-old Jo Wood, for her late-night London shenanigans

 Stylish: Jo Wood looked fashionable in a black suit, which featured white piping around the edges

 Stylish: Jo Wood looked fashionable in a black suit, which featured white piping around the edges

Sticking with it: Supermodel Kate Moss continued to wear the revealing garment she wore earlier in the evening

Sticking with it: Supermodel Kate Moss continued to wear the revealing garment she wore earlier in the evening

Wardrobe changes: Rita alternated her outfit three times on Friday evening - ending with this casual number 

Wardrobe changes: Rita alternated her outfit three times on Friday evening - ending with this casual number 

It appears that Grimmy's birthday bash was quite the star-studded affair, as a host of famous faces partied with him at Soho House, including Rio Ferdinand, Jeremy Piven and Douglas Booth.

Former footballer Rio cut a dapper figure wearing a white shirt with black trousers and Black Nike trainers.

Mr Selfridge actor Jeremy donned a smart/casual ensemble, consisting of jeans, a white tee and grey blazer.

British actor Douglas Booth smartened up the evening in a camel-coloured blazer with black skinny jeans.

Famous pal: It appears that Grimmy's birthday bash was quite the star-studded affair, as a host of famous faces partied with him at Soho House, including Rio Ferdinand, who cut a dapper figure wearing a white shirt

Famous pal: It appears that Grimmy's birthday bash was quite the star-studded affair, as a host of famous faces partied with him at Soho House, including Rio Ferdinand, who cut a dapper figure wearing a white shirt

Suave: Mr Selfridge actor Jeremy Piven donned a smart/casual ensemble, consisting of jeans, a white tee and grey blazer

Suave: Mr Selfridge actor Jeremy Piven donned a smart/casual ensemble, consisting of jeans, a white tee and grey blazer

Heartthrob: British actor Douglas Booth smartened up the evening in a camel-coloured blazer with black skinny jeans

Heartthrob: British actor Douglas Booth smartened up the evening in a camel-coloured blazer with black skinny jeans

Happy couple: It seems that Grimmy's party was also something of a mini X Factor reunion as, aside from judge Rita, he was also joined by The Xtra Factor co-host Rochelle and her husband, Marvin

Happy couple: It seems that Grimmy's party was also something of a mini X Factor reunion as, aside from judge Rita, he was also joined by The Xtra Factor co-host Rochelle and her husband, Marvin

Happy chappy: The show's hosts, Olly Murs and Caroline Flack, also came along for the party

Happy chappy: The show's hosts, Olly Murs and Caroline Flack, also came along for the party

Birthday boy: Radio 1 DJ Grimmy turned 31 on August 14th but celebrated his birthday with a star-studded party on Friday evening

Birthday boy: Radio 1 DJ Grimmy turned 31 on August 14th but celebrated his birthday with a star-studded party on Friday evening

It seems that Grimmy's party was also something of a mini X Factor reunion as, aside from judge Rita, he was also joined by the show's hosts, Olly Murs and Caroline Flack, along with Xtra Factor co-host Rochelle and her husband, Marvin.

Earlier on Friday, Kosovo native Rita brought her brave and unstoppable attitude to her outfit as she attended the launch of her new Adidas collection at JD Sports in central London.

The X Factor judge appeared in good spirits as she made her way out of a taxi, smiling to herself as she listened to some music through her headphones. 

Hot right now: Rita Ora brought her brave and unstoppable attitude to her outfit on Friday, as she attended the launch of her new Adidas collection at JD Sports in central London

Hot right now: Rita Ora brought her brave and unstoppable attitude to her outfit on Friday, as she attended the launch of her new Adidas collection at JD Sports in central London

The Adidas Originals collaborator wore two pieces from her sportswear line, modelling the mystic moon jacket and trouser set in complete style.  

Flaunting her slimline figure and curvaceous hips in the fitness range, the hit-maker blared out music into her headphones to keep noise at bay for her evening out. 

Completing her look with a pair of fresh white trainers, Rita looked warm and comfy as she made her way around the chilly capital. 

Work it: The Adidas Originals collaborator wore two pieces from her sportswear line, modelling the mystic moon jacket and trouser set in complete style 

Work it: The Adidas Originals collaborator wore two pieces from her sportswear line, modelling the mystic moon jacket and trouser set in complete style 

The pop star added to her sporty ensemble with a deep plum lip and winged eyeliner, as she carefully made her way out of a blacked out vehicle.  

With her long, blonde tresses hanging loose for her appearance at the high street store, Rita looked in her element, proudly modeling her own line of Adidas clothing. 

No doubt listening to some musical inspiration, the new X Factor judge was pictured with her white headphones firmly in her ears.  

Casual: Completing her look with a pair of fresh white trainers, Rita looked warm and comfy as she made her way around the chilly capital 

Casual: Completing her look with a pair of fresh white trainers, Rita looked warm and comfy as she made her way around the chilly capital 

Looking good: Flaunting her slimline figure and curvaceous hips in the fitness range, the hit-maker blared out music into her headphones to keep noise at bay for her evening out 

Looking good: Flaunting her slimline figure and curvaceous hips in the fitness range, the hit-maker blared out music into her headphones to keep noise at bay for her evening out 

And clearly a strong advocate for wild style choices, Rita, who was slammed for her revealing outfit choice when she appeared on The One Show earlier this year, stood up for fellow pop star Miley Cyrus and her string of skimpy outfits while hosting the MTV Video Music Awards. 

'Miley is the main supporter of that message of being comfortable in your own skin,' Rita told the Hollywood Reporter in the September 11 issue. 

'Madonna started it. Artists who are willing to do it only come along once in a blue moon,' Rita added. 

No doubt listening to some musical inspiration, the new X Factor judge was pictured with her white headphones firmly in her ears 

No doubt listening to some musical inspiration, the new X Factor judge was pictured with her white headphones firmly in her ears 

Sporty: With her long, blonde tresses hanging loose for her appearance at the high street store, Rita looked in her element, proudly modeling her own line of Adidas clothing 

Sporty: With her long, blonde tresses hanging loose for her appearance at the high street store, Rita looked in her element, proudly modeling her own line of Adidas clothing 

 

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now