Hollywood party girl turned mom and celeb designer Nicole Richie will be a guest judge on the season premiere of Project Runway (Jan 14), reports People. Richie, who's never been one to hold her tongue, will return to the show after a successful guest appearance last summer. "Project Runway" executive producer Sara Rea had nothing but sweet things to say about the outspoken boho fashion plate. "She has strong opinions and gives clear and specific constructive criticism to the designers. Also, she isn't afraid to disagree with the other judges."