Project Runway All Stars made its final cut last week, but there's a new all star in town and he's sitting at the judges' table. American fashion designer, Zac Posen — who has previously been a guest judge — makes his debut as a full-time judge — this Thursday on the first-ever teams edition of Project Runway (9/8c, Lifetime). Posen replaces Michael Kors (he'll appear on the season finale) joining Heidi Klum, Nina Garcia and Tim Gunn, along with a slew of guest judges for Season 11. What else can viewers expect to walk down the catwalk? Posen, 32, gives us the scoop.