Chrisitan Siriano, Nina Garcia, Law Roach and Heidi Klum on 'Project Runway' season 21. Disney/Spencer Pazer Logo text [This story contains minor spoilers from the Project Runway season 21 premiere.] Being the host of Project Runway is technically a job, but Heidi Klum doesn't consider it work. "It's not even work for me. It's not, really. It's a pleasure," the supermodel and sprawling reality TV host tells The Hollywood Reporter when asked what it's like to be back on the series alongside some new and old faces.