"Project Runway" returns July 31 with Heidi Klum and Law Roach as 12 diverse designers compete for a career-changing win.

The preview for the upcoming cycle teased a slate of star-studded guest judges, including Jenna Lyons, Michael Kors, Nikki Glaser and Sofia Vergara.

I t's the moment fashion enthusiasts worldwide have been waiting for: Heidi Klum (52) enters the famous workroom in the first ...