Heidi Klum, best known for her modeling career, red carpet looks and for hosting "Project Runway," "America's Got Talent" and "Making the Cut," turns 50 on Thursday. Here's a look back at her career through the years.
Heidi Klum launches her Year Millennium Swimsuit calendar at a media event in New York City on September 8, 1999. Photo by Ezio Petersen/UPI