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Who’s that mystery woman who appeared on the pumpkin-colored carpet at a star-studded Halloween party last week? You’re in for a surprise: It’s actually one of the most recognizable women in the world! Believe it or not, that’s supermodel Heidi Klum in an incredible costume that appears to have aged her by a few decades!

Heidi showed up at her annual Halloween bash in this prosthetic-heavy look that took FIVE different makeup artists nearly SEVEN hours to create! We know Heidi is a huge fan of Halloween, her annual party is one of the most celeb-heavy in Hollywood, and her costumes are always outrageous! This may be her craziest look yet, and it definitely had us fooled. We didn’t recognize her at all!

What was your craziest Halloween costume?