Mark Zuckerberg stole the spotlight during Priscilla Chan’s birthday bash as he surprised his wife with a Benson Boone cosplay performance, even dressed in the artist’s iconic sparkly-blue jumpsuit.

The Facebook founder’s wife did not hold back when celebrating her 40th birthday in an extravagant celebration this weekend featuring a decadent cake and five luxurious outfit changes, all while surrounded by friends and family.

Yet the birthday girl wasn’t the only one who underwent a major fashion moment while ringing in the new decade.

Zuckerberg shared a video to his Instagram account on Friday, revealing an extra special surprise he had up his sleeve while hosting his wife’s lavish black-tie party.

Dressed in a snazzy tux with a smirk on face, the billionaire nonchalantly headed to the stage with his arms wide open.

Two people quickly helped him rip off the expensive-looking outfit, revealing a sparkly-blue jumpsuit underneath that exposed most of his chest.

From that point on, the tech CEO seemed to channel his inner star-energy. More specifically, that of singer-songwriter Benson Boone, who wore the same Elvis-looking outfit during his headline-making Grammy performance earlier this month.

‘Your wife only turns 40 once!’ Zuckerberg’s caption read. ‘Shoutout to @bensonboone for the jumpsuit and new single.’

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Facebook founder Mark Zuckerberg stole the show during his wife’s lavish birthday bash with a surprise Benson Boone cosplay performance including the artist’s iconic sparkly-blue jumpsuit

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The sudden performance occurred during Priscilla Chan’s luxurious 40th birthday bash which featured a decadent cake and five luxurious outfit changes, all while surrounded by friends and family

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Zuckerberg seemingly studied the 22-year-old singer-songwriter’s headline-making Grammy performance from earlier this month, as he attempted to mirror the same moves and outfit

It appeared as though Zuckerberg studied the 22-year-old’s February performance of ‘Beautiful Things,’ as he executed it in the most similar fashion he could.

Despite opting out of Boone’s signature backflip off the piano, the father-of-three still jumped off of the musical instrument before seemingly belting out in song.

The birthday girl, dressed in a black dress and silky-beige shaul, was seen hysterically laughing at her husband’s sudden and bizarre gift from the heart.

Women in gowns and gloves alongside tux-wearing men clapped and cheered behind Chan, as Zuckerberg continued his passionate performance with the help of a band right behind him.

‘I can’t believe my eyes,’ Boone later wrote in Zuckerberg’s comments.

Zuckerberg also added two posts to his Instagram story, seemingly poking fun at the best new artist nominee’s Grammy performance where he pulled down the fabric of the skin-tight outfit to alleviate his crotch area.

‘Full send @bensonboone,’ Zuckerberg wrote in the first post, which was a photo of the outfit on a hanger with the belt undone.

‘Ok I get it…’ the CEO wrote in the next post, where he was seen in the tux while messing around with his chest slightly.

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The birthday girl, dressed in a black dress and silky-beige shaul, was seen hysterically laughing at her husband’s sudden and bizarre gift from the heart

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Just like in Boone’s Grammy performance, two people assisted Zuckerberg in ripping off his lavish tux that revealed the skin-tight one piece underneath

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Zuckerberg teased the outfit in a post to his Instagram story where he tagged Boone, thanking him for the jumpsuit

‘It’s pretty snug,’ the caption concluded, as Zuckerberg appeared to look unsure about the fit of what was hidden underneath his fancy attire.

Boone didn’t shy away from playing into the fun, as he reposted Zuckerberg’s video to his own Instagram story with the caption: ‘@zuck, you’re wild for this.’

Zuckerberg’s video has garnered the attention of thousands since it was shared, accumulating more than 200,000 likes and thousands of comments in just a few short hours.

Some praised the Facebook founder in the comments for being ‘committed to the bit.’ Others joked that ‘he wanted to appear more human’ while dozens more questioned his decision, wondering why he took the attention away from Chan.

‘Mark’s new update is very human,’ one comment read.

Another viewer criticized, adding: ‘A woman’s celebration and you made it about you, the husband…’

A third comment agreed: ‘Why is he making himself the star of the show on his wife’s birthday? Be a gentleman Zuck. Did she even want all this? Or did you?’

‘Is this the masculine energy that was missing?’ questioned another.

Yet hundreds of comments had the same tone, as they wondered if this was just another one of Zuckerberg’s odd endeavors in the midst of his ‘midlife crisis.’ 

In recent months, the billionaire has made headlines for ‘cleaning up his act,’ as he noticeably began trading in his nerdwear for a brand new wardrobe equipped with chains.

Ultra-expensive designer wear, including oversized shirts, jewelry and shearling coats, replaced his traditional go-to cozy computer hoodies.

The internet also began to notice his hairstyle change, as he grew out his longtime buzz for a longer, curlier and more relaxed style.

Earlier this month, Zuckerberg was mocked online for a photo he shared of himself dressed in a Kim Kardashian hoodie.

The 40-year-old billionaire took to Instagram to model the new black garment, which had the words ‘Kim is my lawyer’ scrawled across it in white.

In the caption, Zuckerberg wrote: ‘The only appropriate hoodie @krisjenner,’ tagging Kim’s notorious momager.

The heart of the Kardashian clan was quick to respond, where she said: ‘Hahaha I love it!!!’

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Boone didn’t shy away from playing into the fun, as he reposted Zuckerberg’s video to his own Instagram story with the caption: ‘@zuck, you’re wild for this’

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Zuckerberg’s video has garnered the attention of thousands since it was shared, accumulating more than 200,000 likes and thousands of comments in just a few short hours

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Zuckerberg also added two posts to his Instagram story, seemingly poking fun at the best new artist nominee’s Grammy performance where he pulled down the fabric of the skin-tight outfit to alleviate his crotch area

However, a large portion of the internet didn’t find the post funny as they began speculating whether or not he and Chan were headed for divorce, adding that he was appearing to act like ‘a teenager or a little girl.’

Friday’s birthday video revelation seemed to halt the ‘divorce’ rumors for some, especially after Zuckerberg praised Chan the day after her birthday.

In a post shared to Instagram earlier this week, Zuckerberg called his wife ‘the most important person’ in his life.

‘Celebrating the most important person in my life. You are a great partner, mother, and friend, and I’m grateful to share this life with you @priscillachan,’ Zuckerberg penned lovingly to his wife.

In his post, he showed off three snaps from the weekend – including a photo of the two of them standing arm-in-arm in front of a gorgeous table setting, which featured long seats, white chairs and big chandeliers hanging from the ceiling.

Chan wore a long, light pink, silky strapless dress with a sweetheart neckline, as she gazed lovingly into Zuckerberg’s eyes.

He also included a clip of the speech he gave at the fete, telling the crowd, ‘Every year, you just grow more vibrant, and more beautiful, and I love you so much.’

Chan also took to her own Instagram with photos from the celebration, which showed four separate snaps in different outfits throughout various points in the evening.

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Despite opting out of Boone’s signature backflip off the piano, the father-of-three still jumped off of the musical instrument before seemingly belting out in song

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In a post shared to Instagram earlier this week, Zuckerberg called his wife ‘the most important person’ in his life ahead of her birthday

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In the footage, women in gowns and gloves alongside tux-wearing men clapped and cheered behind Chan, as Zuckerberg continued his passionate performance with the help of a band right behind him

In the first photo, the mom-of-three looked extremely bridal-esque as she wore a square-neck, white gown with a full tulle bottom to blow out the candles on her giant cake.

The cake, however, might have been even more detailed than her white gown, as it was a giant, pastry model of a silver champagne bucket with a black-and-gold detailed bottle poking out of it.

The champagne bucket, made from cake, included circular, beaded detailing and read, ’40’ on its front, also in silver.

The bottle was equally as personalized, as it read, ‘Priscilla’ on the front in gold cursive, as well as ‘Vintage 1985,’ a play on the year she was born.

Chan blew out the candles as the cake sat on a beautifully-decorated table complete with a sparkling gold table cloth that was covered in tea lights and white roses.

The second photo that the pediatrician shared was a sweet one of her and her husband, Zuckerberg, that was taken from the back.

The black-and-white pic showed them looking at someone appearing to make a speech onstage, as he wrapped his arm around her waist and looked lovingly at Chan.

In the third, Chan was seen letting out a huge laugh in the same black dress, this time wearing a taupe-colored, silk shawl and a choker necklace with a gem in the middle.

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The couple celebrated their 12th wedding anniversary together in 2024, marking many years together

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Some praised the Facebook founder in the comments of his post for being ‘committed to the bit.’ Others joked that ‘he wanted to appear more human’ while dozens more questioned his decision, wondering why he took the attention away from Chan

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The pair first met in 2003, when they were both undergraduate students at Harvard University, and began dating that same year

In the back of the snap, she was surrounded by clapping and cheering friends and family, with many of the men dressed in sharp-looking black tuxedos and bowties.

And, in the last slide, Chan appeared to let loose as she was caught jumping on the dance floor with one arm in the air.

‘Turned forty surrounded by family, friends, laughter and dance. I am so so lucky to be so loved,’ Chan penned in the caption of the photo series.

The couple celebrated their 12th wedding anniversary together in 2024, marking many years together.

They first met in 2003, when they were both undergraduate students at Harvard University, and began dating that same year.

They got married the day after Facebook went public.