Heidi Klum has revealed the unglamorous bathroom reality behind her latest Halloween spectacle.
The 53-year-old supermodel, who spent this past Friday night towering over guests at her annual party inside a bloody, eight-to-ten-foot severed hand costume, confirmed that the extreme ensemble required an adult diaper underneath the silicone and fiberglass. Klum shared the behind-the-scenes preparation on Instagram Stories, holding up a flesh-colored disposable undergarment as her transformation began.
“While the red carpet results are pure Hollywood magic, the backstage reality proves that holding onto the Queen of Halloween crown for 25 straight years takes some serious—and distinctly unglamorous—dedication,” she wrote in the accompanying post.
The practical measure is not new for Klum. She has previously admitted that her most restrictive full-body builds demand the same preparation. Her 2022 earthworm costume and her 2024 E.T. Creation both left her sealed inside prosthetics for 10 to 14 hours once the Prosthetic Renaissance team finished gluing and blending the final seams.
To further minimize any need for the diaper, Klum cuts off all liquid intake hours before stepping into the rig. The strategy has become as much a part of her ritual as the prosthetics themselves.
Oscar-nominated effects master Mike Marino designed the internal load-bearing skeleton that allowed Klum to stand upright on five towering fingers. The structure left her peering through tiny bruised eyeholes, completely sealed within the faux flesh with no possibility of a quick removal between red carpet photos.
Klum made clear that wearing the diaper is strictly a precaution. She has no intention of actually using it, but considers the backup essential given the hours locked inside.
The 2026 costume drew immediate comparisons to vintage creature features. Observers spotted references to body-horror auteur David Cronenberg and the blood-soaked aesthetic of Sam Raimi’s Evil Dead franchise in the design’s gruesome details.
The party itself took place at Cathédrale in New York, where Klum has hosted her famous Halloween gathering for a quarter-century. Guests at the invitation-only event face strict rules, with some at risk of being turned away at the door if they do not meet the dress code requirements.
Klum first established her reputation as Halloween’s reigning celebrity with increasingly elaborate prosthetic transformations, each year attempting to outdo the last through practical effects rather than simple makeup or clothing. The severed hand marked her 25th consecutive year of headline-grabbing costumes.
The fiberglass and silicone construction meant that once the final pieces were applied, Klum was effectively trapped until the early morning hours. No bathroom breaks, no costume adjustments, no relief from the physical demands of the rig until the party ended.