Tamara Ecclestone spares no expense as she treats birthday girl sister Petra Stunt to private show from Brandy to ring in her 28th alongside their daughters at lavish London bash

She is the daughter of billionaire Bernie Ecclestone, the chief executive of the Formula One Group.

So it is no wonder that Petra Stunt pulled out all the stops for her lavish 28th birthday bash at the Dorchester Hotel on Saturday night. 

The mother-of-three was joined by her glamorous sister Tamara, 32, and their respective children and husbands for the no-expense spared party - which even saw Grammy award-winning singer Brandy perform for guests.

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No expense spared: Petra Stunt pulled out all the stops for her lavish 28th birthday bash at the Dorchester Hotel on Saturday night

Going all out: The lavish party even saw Grammy award-winning singer Brandy perform for guests

It had clearly been a fun-filled event, as the sisterly duo left the Dorchester Hotel holding an array of colourful balloons and their daughters Sophia, 2, and Lavinia, 3, sporting glittering face paint.

Birthday girl Petra was first to head home from the festivities - looking as glamorous as ever in a chic black lace maxi dress. 

The Gothic-inspired frock was formed of a black slip beneath a layer of delicate lace, which extended into a sophisticated high neck and semi-sheer maxi skirt. 

Fun-filled festivities: The sisterly duo left the Dorchester Hotel holding an array of colourful balloons and their daughters Sophia, 2, and Lavinia, 3, sporting glittering face paint

Stunner: Brandy looked fabulous as she belted out hits to the admiring crowds 

Moesha in the house! The Nineties favourite went down a storm with her fellow stars 

Adding further chic elements to the look, the wife of businessman James Stunt accessorised her look with funky leopard print platform heels and a vibrant magenta shoulder bag, for a pop of colour.

She left her bright blonde tresses in loose waves but added a defined brow and thick slick of red lipstick - opting for bold cosmetics to ensure she was the centre of attention on her big day.

Tamara soon followed suit in a more vibrant scarlet ensemble, decorated with a regal floral print.  

Engrossed: Sophia looked fascinated by the singer as they sat on the stage together 

Glamour girl: Birthday girl Petra was first to head home from the bash - looking as glamorous as ever in a chic black lace maxi dress

Woman of the hour: She left her blonde tresses in loose waves but added a defined brow and thick slick of red lipstick - opting for bold cosmetics to ensure she was the centre of attention

Stylish siblings: Tamara soon followed suit in a more vibrant scarlet ensemble, decorated with a regal floral print

The knitted frock was printed with polka dots at the top, before extending into strips of traditional regal black flowers at its knee-length hem.

Amping up the glamour of the look, the socialite then teamed the demure frock with a set of suede thigh-high boots for extra height and a shining black fur coat on top. 

The brunette beauty swept her curled hair into a clip at the crown to fully display her naturally stunning features - which she dressed with perfectly bronzed and contoured make-up. 

Classically chic: Amping up the glamour of the look, the socialite then teamed the demure frock with a set of suede thigh-high boots for extra height and a shining black fur coat on top

Following suit: Also dolling herself up for the bash was her daughters Sophia, 2 (above) - who sported a sweet red dress and a tiny black fur jacket to match her mother's

Also dolling themselves up for the bash were their daughters Sophia, 2, and Lavinia, 3 - who both clad themselves in sweet scarlet gowns and glittering gold shoes for the party.

While Lavinia's was formed of lace in the style of a Spanish senorita, Sophia added a chic tiny fur jacket to hers - sweetly matching mother Tamara's, and proving her to already be following in her glamorous footsteps.

Sophia cosied up to her mother after the undoubtedly busy and tiring day - but still smiled excitedly at the gift of a balloon animal in her arms.

Partied out: Sophia cosied up to her mother after the undoubtedly busy and tiring day - but still smiled excitedly at the gift of a balloon animal in her arms

Taking to her Instagram, Tamara was sure to document each stage of the elaborate bash, which was held at the elite London hotel's restaurant - China Tang.

She first posted an intimate snap of her and birthday girl Petra, with the pair looking as glamorous as always as they posed side by side. 

Not holding back on celebrations, the brunette beauty later revealed that American songstress Brandy had even taken to the stage to entertain guests at the bash.

Posting a selection of sweet videos, the doting mother filmed the Have You Ever singer crooning Happy Birthday beside the toddlers - who gazed at the singer adoringly as they sat excitedly on stage. 

Directly to you: Brandy belted out a track to the joy of the little girl 

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