By now, former Victoria's Secret supermodel and America's Got Talent judge Heidi Klum is known for her penchant for dressing up on Halloween. This year, fans and social media users alike were truly stunned by her transformation.In the time leading up to her costume reveal, Heidi dropped hints about her outfit, even going as far as to let her fans know this year's iteration would be "very ugly." Prior to the 24th annual Heidiween party in New York City, Klum shared her thoughts with Vogue:“I look forward to Halloween all year. I have been doing this for 24 years, and hope I can do it forever. Every year, I get more inspired and more enthusiastic. It is just a perfect day to be silly, dress up, dance with friends, be creative, and eat candy!"To complete the outfit, Heidi Klum's husband dressed as a swordsman who had been turned to stone by way of Medusa's powers.Everything you need to know about Heidi Klum’s Medusa costumeHeidi Klum’s most recent Halloween get-up was a true labor of love. Alongside friend and Oscar-nominated special effects artist Mike Marino, Klum had a team of 15 people who toiled over six months to create the final look.When speaking about her inspiration for the costume with Vogue, Heidi shared the following thoughts:“I wanted to explore the classic monsters of history, and reimagine one in a modern way. Medusa stood out to me as truly iconic—mysterious yet ferocious. The legend of her turning humans to stone has fascinated audiences for centuries. In museums, countless paintings and sculptures depict her haunting power, a testament to how terrifying and compelling she remains."Attention to detail was extremely important to the entire team, who worked tirelessly to achieve the end result. The bold look required nine hours of makeup work and several intricately planned moving parts.“I love that all of the snakes move independently—they look so real. I also have a custom split snake tongue that is just next level. I love a challenge, so I am always striving to outdo myself from the years before."Finally, Heidi Klum was also sure to give praise to the attendees for their Halloween spirit:“They all inspire me and are a reason why I do this. I started this party to make people happy, and it thrills me that, all of these years later, I am still bringing smiles to so many people. Happy Halloween!”Other celebrities in attendance at Heidi Klum’s annual bash included Ice-T and his wife Coco, Darren Criss and his wife Mia Swier, and Olympian Ilona Maher, among several others.