"Project Runway Season 13" Finale Show - Mercedes-Benz Fashion Week Spring 2015 [Getty Images]

NEW YORK, NY - SEPTEMBER 05: Supermodel Heidi Klum administers the ALS Ice Bucket Challenge to host Tim Gunn at the Project Runway Season 13 Finale Show during Mercedes-Benz Fashion Week Springs 2015 at The Theatre at Lincoln Center on September 5, 2014 in New York City. (Photo by Taylor Hill/FilmMagic)

FilmMagic Taylor Hill