Donna Air keeps it chic in satin striped blouse and tailored trousers as she steps out for first time since denying rumours she's split from James Middleton

She was recently plagued by rumours that her two-and-a-half year relationship with James Middleton was over.

And just days after the Duchess of Cambridge's brother dismissed the reports and confirmed they were ‘very much still together’, Donna Air was pictured enjoying a glamorous night out on Thursday.

Making her way to London’s Beaumont Hotel, the 36-year-old was one of many stars to join Cindy Crawford and George Clooney at the Casamigos Tequila launch and Cindy's book party.

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Social butterfly: Donna Air headed to the London launch of Casamigos Tequila and Cindy Crawford's book on Thursday evening

Social butterfly: Donna Air headed to the London launch of Casamigos Tequila and Cindy Crawford's book on Thursday evening

The British TV personality cut a simple, yet, perfectly chic figure in a striking black ensemble, consisting of a blue striped shirt by Magda Butrym, tailored trousers and killer heels from Malone Souliers.

She opted to wear her thick blonde locks in softly tousled waves, and added a sweet touch to her ensemble with a delicate beaded bracelet.

As well as the A-list crowd, Donna mingled with the likes of Kelly Hoppen, David Furnish, Noel Gallagher and Lewis Hamilton.

All smiles: Her sighting comes days after her boyfriend, James Middleton, dismissed split rumours - he recently confirmed they were ‘very much still together’

All smiles: Her sighting comes days after her boyfriend, James Middleton, dismissed split rumours - he recently confirmed they were ‘very much still together’

Classy lady: The British TV personality cut a simple, yet, perfectly chic figure in a striking black ensemble, consisting of a blue striped shirt, tailored trousers and killer heels from Malone Souliers

Classy lady: The British TV personality cut a simple, yet, perfectly chic figure in a striking black ensemble, consisting of a blue striped shirt, tailored trousers and killer heels from Malone Souliers

Attention to detail: She opted to wear her thick blonde locks in softly tousled waves, and added a sweet touch to her ensemble with a delicate beaded bracelet

Attention to detail: She opted to wear her thick blonde locks in softly tousled waves, and added a sweet touch to her ensemble with a delicate beaded bracelet

Good friends: Donna mingled with the likes of  David Furnish, Lewis Hamilton and Kelly Hoppen (pictured)

Good friends: Donna mingled with the likes of David Furnish, Lewis Hamilton and Kelly Hoppen (pictured)

A-list crowd: She also bumped into Oasis rocker Noel Gallagher at the exclusive bash

A-list crowd: She also bumped into Oasis rocker Noel Gallagher at the exclusive bash

Main hosts: Rande Gerber, Cindy Crawford and George Clooney seen at their Casamingos Tequila & Cindy Crawford book launch party at The Beaumont Hotel on Thursday

Main hosts: Rande Gerber, Cindy Crawford and George Clooney seen at their Casamingos Tequila & Cindy Crawford book launch party at The Beaumont Hotel on Thursday

The former Big Breakfast host’s appearance comes shortly after her boyfriend James told The Mail on Sunday that the couple are happier than ever.

'Mark Twain once complained that reports of his death were exaggerated,' they said in a joint statement. 'A few days ago we were equally amazed to read the obituaries of our relationship splashed across the national press.

'Happily, we can report that our relationship is not over. We are still very much a couple and have not parted ways. These stories are completely untrue and without merit.'

Beaming: The pretty blonde appeared to be in fantastic spirits during the night's proceedings 

Beaming: The pretty blonde appeared to be in fantastic spirits during the night's proceedings 

Happy: The former Big Breakfast host’s appearance comes shortly after her boyfriend James told The Mail on Sunday that the couple are happier than ever

Happy: The former Big Breakfast host’s appearance comes shortly after her boyfriend James told The Mail on Sunday that the couple are happier than ever

Yummy mummy: Donna has an 11-year-old daughter, Freya, from her previous relationship with casino millionaire Damian Aspinall 

Yummy mummy: Donna has an 11-year-old daughter, Freya, from her previous relationship with casino millionaire Damian Aspinall 

James and Donna went public with their romance in 2013, after meeting at Robin Birley's private members' club No 5 Hertford Street in London's Mayfair, but have remained notoriously private throughout their courtship.

The couple made their first appearance in public together April 2013, after they were spotted hand-in-hand on a date night at LouLou's private members' club in Mayfair. 

Donna has an 11-year-old daughter, Freya, from her previous relationship with casino millionaire Damian Aspinall.

Feeling merry: The stunning blonde offered photographers a wave and flashed them a beaming white grin as she made her way out of the venue

Feeling merry: The stunning blonde offered photographers a wave and flashed them a beaming white grin as she made her way out of the venue

More is more! The fashionista proved she didn't need to flaunt the flesh to look good
More is more! The fashionista proved she didn't need to flaunt the flesh to look good

More is more! The fashionista proved she didn't need to flaunt the flesh to look good

Loved-up: James and Donna went public with their romance in 2013, after meeting at Robin Birley's private members' club No 5 Hertford Street in London's Mayfair

Loved-up: James and Donna went public with their romance in 2013, after meeting at Robin Birley's private members' club No 5 Hertford Street in London's Mayfair

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