Hilary Duff was a guest judge for Project Runway's episode, and it was a perfect fit. During the episode Hilary critiques outfits for babies and their moms alongside mom and host Heidi Klum. "He can move in it, which is so important. You can tell he's ready to move," Hilary said to contestant Sonijia Williams. Duff was busy playing mom to Luca for months now, so its nice to see her get back in front of the camera.