By Lindzi Scharf
January 09, 2014 at 09:51 PM EST

“You will always be All Stars, but there can only be one winner,” host Alyssa Milano warns in the teaser for tonight’s Project Runway All Stars finale. It’s finally down to the top three — Seth Aaron Henderson, Korto Momulu, and Elena Slivnyak — so who will earn Runway immortality?

The outlook isn’t good for one contestant. “The pants don’t fit!” barks judge Issac Mizrahi in a promo video from Lifetime. “The whole thing is a styling disaster!”

Tonight the contestants visit the United Nations, where they’re tasked with creating a seven-piece collection inspired by their family history. The catch? One ensemble must be made completely out of scarves. Oprah BFF Gayle King and designer Zac Posen serve as guest judges.

Watch a sneak peek of tonight’s Project Runway All Stars finale after the jump.