Well, okay, to be clear, Project Runway is staying on Lifetime and everything, but the majority of the designers returning for All Stars were from the O.G. seasons (1-5) of the series. You can check out all of the contestants here, but I'll save you the trouble and confirm that fan favorites Austin Scarlett and Mondo Guerra will be participating. It's also worth mentioning to viewers of Bravo's The Fashion Show that Isaac Mizrahi will be judging (along with designer Georgina Chapman). And Marie Claire editor-in-chief Joanna Coles will be filling Tim Gunn's shoes while supermodel Angela Lindvall fills Heidi's.

Project Runway All Stars premieres tonight at 9 PM on Lifetime, opposite winter debuts of Grey's Anatomy on ABC and The Secret Circle on The CW.

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