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Gigi Hadid and her sister Bella were dressed to impress for a night celebrating their agent Luiz Mattos' 50th birthday. 

Gigi, 27, wowed wearing a feathered mask, satiny pink tube top and glossy red skirt which clung to her figure as she made her way to the Boom Boom Room at the Standard Hotel in New York on Saturday.

Meanwhile, sister Bella, 25, showed off a hint of her bra in a paint-splattered dress.

Head-turning display! Gigi Hadid and her sister Bella were dressed to impress as they attended agent Luiz Mattos' 50th birthday bash on Saturday night

The catwalk queen held hands with her boyfriend Marc Kalman as she struck poses in her arty, curve-clinging dress.

She wore her raven hair up into a chic updo and rocked thing bangs which skimmed over her beautifully done-up complexion.

The beauty ramped up the glam with plenty of makeup, while her sister Gigi hid much of her complexion behind an ornate mask.

From her mask to her unmissable red skirt, Gigi put on a head-turning display at the bash.

All eyes on her! There was no missing Gigi in her glossy red skirt and elegant mask 

Strike a pose! Bella posed up a storm whilst holding hands with her boyfriend Marc Kalman 

She wore elbow-length gloves and a pair of champagne hued heels.

Also joining along the festivities were Gigi and Bella's parents, Mohamed Hadid and Yolanda Hadid.

The exes were pictured separately, and Mohamed was seen leaving the bash with a mystery woman on his arm.

Look who's here! Mohamed Hadid was pictured at the bash with a mystery woman on his arm 

Party time! Yolanda beamed with joy as she left the bash with a transparent mask concealing the upper half of her face

Yolanda beamed with joy as she left the bash with a transparent mask concealing the upper half of her face.

The Hadids weren't the only big names attending the party.

Bebe Rexha looked breathtaking in a low-cut black dress held together by safety pins. 

The songstress had heads turning as she legged her way into the bash.  

Safety first! Bebe Rexha looked breathtaking in a low-cut black dress held together by safety pins

Earning her fashion stripes! Bella was spotted the day after the bash in a plaid mini skirt 

Lovebirds: She was trailed by her adoring boyfriend Marc as they enjoyed some time together in NYC