The "Modern Family" star challenges the hit reality competition's current batch of young designers to create a look based on his line of bow ties, Tie The Knot, proceeds from which are donated towards marriage equality.
Ferguson also serves as the guest judge for the bow tie-inspired challenge and according to GLAAD, one of the designers is so inspired, he proposes to his boyfriend of 18 years during the judging ceremony. And Heidi Klum even offers to be part of the wedding!
Watch a clip of the episode above and tune into "Project Runway" this Thursday at 9pm ET on Lifetime to watch the engagement and all of the bow tie designs in their full glory.
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