Justin Hemmes throws WILD rave for his staff at his Sydney club with girlfriend Madeline Holtznagel

Business is booming for billionaire baron Justin Hemmes and the Merivale mogul invited his hard-working staff to the party of the year on Monday night.

Hemmes, who is worth an estimated $1.06 billion, hosted a raucous rave at his Sydney CBD club The Ivy to celebrate a successful 2022.

Dressed in a silver jumpsuit for the space-themed bash, the 50-year-old was joined by his stunning model girlfriend Madeline Holtznagel, 26.

The blonde bombshell took center stage in a daring $1,390.00 hologram sequin wrap jumpsuit as she danced alongside other scantily clad partygoers, including a topless woman in pasties and a man in silver latex mini shorts.

Madeline’s futuristic outfit was completed with rose-tinted sunglasses, giant heart earrings, and a Prada crossbody bag.

Meanwhile, Hemmes wore a silver spacesuit with a wolf motif on the back and also covered his eyes with giant mirrored sunglasses.

Madeline (far right) took center stage in a daring $1390.00 holographic sequin wrap jumpsuit as she danced alongside other scantily clad partygoers.

The couple and their staff enjoyed drinks and food throughout the night while enjoying old-school house and techno music courtesy of various Merivale DJs.

At one point, Justin was seen dancing on the stage inside the club as the hilt of his cane pumped the air around him.

The billionaire’s sister, Bettina, also attended the event, sporting a shiny gold jacket as she proudly hugged her brother.

Meanwhile, Hemmes wore a silver spacesuit with a wolf motif on the back and also covered his eyes with giant mirrored sunglasses.

Madeline showed off some sideboob in her Ava Meridian Nebula jumpsuit paired with a chic Prada bag

The couple shared a giggle with the robot-clad man on Sydney’s busy George St when they arrived for the party.

Justin returned to the stage later in the evening to thank his staff for the ‘best year of his life’.

I am very grateful to all of you and I want you to have the best night tonight. Look around you, this is electric, this is magical, and it’s all because of you. So thank you for the best year of my life and here’s to a better year ahead!’ she said to enthusiastic applause.

While it’s not known exactly how long they’ve been dating, Justin and Madeline have been publicly together for around three years.

Madeline previously hinted that they had known each other for much longer.

Speaking to The Sydney Morning Herald in October 2020, he said that they had actually known each other for two years before reports of their relationship surfaced.

“We’ve known each other for two years and we met when I was modeling in Singapore,” she said at the time.

Madeline and her staff enjoyed drinks and food throughout the night while enjoying old school house and techno beats courtesy of various Merivale DJs.

The billionaire’s sister, Bettina, also attended the event, sporting a shiny gold jacket as she hugged her brother.

It was also reported that Madeline lived in a penthouse owned by Justin in the Sydney beachside suburb of Coogee.

The Australian couple often showcase their lavish lifestyle on Instagram, posting photos on private planes and yachts.

Justin made his Financial Review Rich List debut in 2018 with an estimated net worth of $951 million.

Space suits and black latex seemed to be the preferred dress code at night.

At one point, Justin was seen dancing onstage as the hilt of his cane pumped the air around him.

In 2021, the pub tycoon’s net worth grew to $1.2 billion, making him the 97th richest person in Australia.

It is now worth about $1.06 billion.

The billionaire businessman owns a number of pubs and lucrative establishments across the country, including the Lorne Hotel on Victoria’s Great Ocean Road, along with The Quarterdeck, The Inlet and The Whale Inn.

His grand parties for his staff have become folklore at Merivale.

Justin returned to the stage to thank his staff for the ‘best year of his life’