The designers are left scratching their heads when faced with Project Runway's first hat inspiried challenge when they must design garments influenced by the outrageous hats designed by famed British milliner, Philip Treacy, who also serves as the guest judge.

Designers will select real former bridesmaids--in some good, bad and tacky--bridesmaid dresses and prove that they can be worn again after they redesign the looks. But will they be able to handle the pressure when they have to showcase their work for the public? Designer Cynthia Rowley guest judges.