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OTRC: Heidi Klum's Halloween 2013 costume: Elderly woman - see process

Heidi Klum appears in an elderly woman costume at her 14th annual Halloween party, held at the Marquee nightclub in New York and presented by SVEDKA Vodka, Shutterfly and Smartwater on Oct. 31, 2013. (Seth Browarnik / Startraksphoto.com)

Halloween never gets old for Heidi Klum -- but on Halloween 2013, it sure did!

The 40-year-old supermodel, "America's Got Talent" judge and "Project Runway" host threw her 14th annual Halloween bash on Thursday, Oct. 31. She arrived at the party, which was held at the Marquee nightclub in New York City, dressed up as an elderly woman, from head to toe.

(See more PHOTOS of Heidi Klum at her Halloween party.)

Her costume involved the use of elaborate makeup and prosthetics, which included a larger behind and fake varicose veins. She tweeted photos showing how it was made (See below).

"Thanks to Andy Clement and #creativeCharacterEngineering for my amazing prosthetics," she said.

Klum is known for her impressive Halloween costumes and lavish parties, which she used to throw with then-husband Seal. Last year, she dressed up as Cleopatra at a belated Halloween party she hosted, almost two months after she canceled her annual bash out of respect to the victims of Hurricane Sandy.

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