Project Runway All Stars is an American reality television series, and a spin-off of Project Runway, featuring returning designers competing for grand prizes. Angela Lindvall and Carolyn Murphy have each hosted one season before Alyssa Milano became the staple host of the past five seasons. As on Project Runway, the designers are judged by the host, two permanent judges and guest judges throughout the season. The permanent All Stars judges have been designers Georgina Chapman and Isaac Mizrahi. Joanna Coles mentored the designers throughout seasons one and two, Zanna Roberts Rassi replaced her in season three to five and Anne Fulenwider mentored seasons six and seven.