Catch a Project Runway All Stars Sneak Peek! (VIDEO)

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FOUR DESIGNERS LEFT! For this week's episode of Project Runway All Stars, the final four battle it out in the last episode before the season finale. Even more intense? Not one, but TWO guest judges will decide their fate. Kristin Chenoweth and Nick Cannon join the panel this Thursday at 9 p.m. on Lifetime. Don't forget to follow @marieclaire on Twitter for live updates throughout the episode!

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