She gave birth to the couple’s twins, son Sir and daughter Rumi, just three months ago back in June.

And showcasing her impressive post-baby frame, Beyonce put on a seriously leggy display as she joined her husband Jay Z at Rihanna’s annual Diamond Ball in New York City on Thursday evening.

Although, the revealing nature of her ball attire saw the Crazy In Love singer, 36, fall victim to a slight wardrobe mishap, as she struggled to manage her frock’s VERY daring thigh-high split and ended up flashing her Spanx to onlookers.

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Date night! Beyonce fell victim to a wardrobe mishap and ended up flashing her spanx as she enjoyed a date night with husband Jay Z at Rihanna’s annual Diamond Ball in New York

Showcasing her enviably curvaceous frame, Beyonce dazzled at the high-profile bash in the stunning silk number that featured embellished cuffs at the sleeve.

The glamorous frock boasted a sultry yet risque split to one side, that stretched all the way to the top of her thigh and left her legs firmly on display as she strolled hand-in-hand with her beau into the party.

Although, the revealing nature of her slinky number revealed a little too much as the star appeared to be sporting black lacy under garments, cleverly designed just for one leg given the split of her dress on one side.

Emphasizing her pins further, Beyonce added a few inches to her 5ft 7in frame with a a pair of chunky platform heels that fastened at the ankle.

Flashing the flesh: The Crazy In Love singer’s glamorous frock boasted a very daringly-cut split to one side, that stretched all the way to the top of her thigh and left her legs firmly on display

Risque: Although, her slinky number revealed a little too much as the star appeared to be sporting black lacy under garments, cleverly designed just for one leg given the split of her dress on one side

Her dress also featured a plunging neckline that stole a glimpse at her ample assets, along with a wrap-over design that nipped in at the waist to highlight the star’s svelte frame, before skimming over her pert derriere.

The Sorry hit-maker finished off her ensemble with a glamorous beauty look that saw her lightened tresses swept over to the side and teased into soft curls that fell past her shoulders.

Sporting a subtle yet sophisticated make-up look that highlighted her flawless complexion, Beyonce framed her eyes with a sweep of kohl liner and added a slick of glossy nude lipstick to her lips.

Loved-up: Beyonce and Jay Z were seen walking hand-in-hand as they stepped out in NYC

Risque: Beyonce teased a look at her buxom bust as she oozed 𝑠e𝑥 appeal in the plunging teal gown

Rapper Jay Z, 47, looked a million dollars in a classic black and white tuxedo with a large, floppy bow tie.

Cutting a dapper figure at the event, the music mogul looked like he was having a great time as he posed with fellow A-listers Jamie Foxx, and, of course, Rihanna herself.

Hours prior to joining Rihanna and her celebrity guests at the ball, Beyonce appeared to stop by Broadway.

Traditional: Husband Jay Z, 47, looked a million dollars in a classic black and white tuxedo with a large, floppy bow tie

Star studded: The music mogul looked like he was having a great time as he posed with fellow A-listers like Jamie Foxx

The woman of the hour: Jay Z also made sure to snag a snap with Rihanna

Powerhouses of pop: Beyonce sat down for a quick photo with Rihanna

Happy: The A-lister couple were in high spirits on their exit from the star-studded bash

Shiny: Queen Bey put her pout on display in a close-up Instagram shot

Different twins: She also afforded fans a glimpse of her decolletage

Before and after? The Halo singer showed of her toned limb thanks to a right side split

Bling bling: She decided to showcase her dangly silver earrings with a detail shot, though it was slightly blurry

Dear Evan Hansen star Ben Platt, who is perhaps best known for his work in the Pitch Perfect series, posted a shot of Beyonce visiting him in his dressing room back stage.

In the snap, shared via Instagram, the pop sensation stands to a very excited Ben’s right hand side and was seen clutching onto a striking gold handbag while sporting a stylish bardot top that once again flaunted her cleavage.

His cryptic caption read ‘The alien called me an alien and I’m no longer living.’

Lucky man! Dear Evan Hansen star Ben Platt, who is perhaps best known for his work in the Pitch Perfect series, posted a shot of Beyonce visiting him in his dressing room back stage

Beyonce’s appearance in New York comes just three months after the star had welcomed twins with Jay Z.

The couple are also parents to daughter Blue Ivy, five, and had first announced they were expanding their brood in February, with Beyonce revealing her huge baby bump while posing nude in a striking photo-shoot.

She gave birth to Rumi and Sir Carter in June and is now settling into family life as a four. Reports had claimed that Beyonce and Jay Z had concerns that their eldest daughter Blue would feel ‘left out’ following the arrival of her siblings, but sources have claimed she has been ‘great’ with the twins.

Last month, an insider told People: ‘There was no need to worry because Blue is great. She takes her job as a big sister very seriously and helps out a lot.’

‘Beyoncé has been very busy with the newborns, but she’s also been able to relax a bit. It’s helped her that Blue has been such an amazing big sister.’

Proud parents: Beyonce and Jay Z share daughter Blue Ivy, five, together and had welcomed twins, son Sir and daughter Rumi, back in June