Supermodel Heidi Klum hosted her 25th annual Halloween celebration at New York City's Cathédrale restaurant on October 31. The 53-year-old star debuted a shocking transformation that left guests and fans stunned.

The bloodied severed hand that marked Heidi Klum's 25th annual bash

Heidi Klum continued her tradition of extreme transformations by appearing as a massive, blood-stained severed hand. According to the report, the costume featured realistic skin, exposed flesh, and oversizzed gold jewelry, complemented by bright red fingernails. To add to the theatricality, a group of guests dressed in yellow hazmat suits accompanied Klum across the blue carpet.

The supermodel had previously teased her followers that the look would be "very , very bloody," a promise she delivered with high-fidelity prosthetics. By choosing a costume that rendered her completely unrecognizable, Klum reinforced her status as the "Queen of Halloween" in a city known for its competitive holiday displays.

From Freddie Mercury to 2003 VMA Madonna: The night's pop culture tributes

The guest list at Cathédrale restaurant included several high-profile tributes to music legends. Actor Eric McCormack, 63, channeled Queen frontman Freddie Mercury, sporting a signature black mustache, aviator sunglasses, and a leather jacket. Meanwhile, singer Taylor Momsen paid homage to AC/DC's Angus Young, wearing the guitarist's iconic red blazer, matching shorts, and a red cap with the letter A.

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Adding a layer of early-2000s nostalgia, guest Laura Abla recreated a specific viral moment from pop history. As reported, Abla dressed as Madonna from the 2003 MTV Video Music Awards, referencing the night the pop star famously kissed Britney Spears and Christina Aguilera on stage.

Valentina Sampaio and Elizabeth Hurley both channeled Poison Ivy

The theme of botanical villainy appeared twice during the event. Brazilian supermodel Valentina Sampaio, 29, wore a plunging green lace bodyusit with a corseted waist and red heels to evoke the Batman antagonist Poison Ivy. Similarly, actress Elizabeth Hurley, 61, adopted the Poison Ivy persona alongside her boyfriend, Billy Ray Cyrus, receiving a seal of approval from Heidi Klum herself.

Other guests leaned into darker cinematic tropes. Musician Chase Hudson, 24, dressed as Patrick Bateman from American Psycho, pairing a pinstripe suit with fake blood on his face.. The evening also featured gothic elements from 72-year-old photographer Ellen von Unwerth, who wore a layered black lace dress and a spiky headpiece.

A quarter-century of high-concept horror in New York City

This 25th anniversary party is part of a broader shift in celebrity culture where Halloween has evolved from a simple holiday into a high-stakes branding exercise.. The commitment seen at the Cathédrale restaurant event echoes the maximalist approach taken by other A-listers like Kim Kardashian and Paris Hilton, who frequently use the holiday to debut jaw-dropping,couture-level costumes that are designed specifically for viral social media circulation.

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For the modern celebrity, the goal is no longer just to be "in costume," but to achieve a total physical metamorphosis. Heidi Klum's transition from a supermodel to a severed hand represents the peak of this trend, where the human form is treated as a canvas for special effects makeup and architectural fashion.

Who designed the prosthetic skin for the severed hand?

While the visual impact of the night was clear, several details remain unverified. The report does not name the specific makeup artists or prosthetic designers responsible for Heidi Klum's severed hand , leaving the technical origin of the costume a mystery. Additionally, while the source mentions that Sandra Bullock, 62, shared rare photos of her children, Louis and Laila,it does not specify what costume Bullock herself wore to the festivities.