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Heidi Klum

LAS VEGAS - OCTOBER 29: Heidi Klum attends her 12th Annual Halloween Party at TAO Nightclub at the Venetian on October 29, 2011 in Las Vegas, Nevada. (Photo by Chris Weeks/WireImage)

Heidi Klum's 13 best Halloween costumes

Yahoo Celebrity

Heidi Klum really loves Halloween! Every year since 1999, the "Project Runway" host has gone all out when it comes to her costume. Take a look back ... if you dare.