Heidi tells our nine remaining designers that for this challenge they are to create a look for the most important day in a girl's life. Then, she introduces the models: seniors from St. John Vianney High School in New Jersey. These young women are the designers' clients, too, and in a Project Runway first, it is they who are choosing the designers with whom they will work. The selection process was informed by a review of each designer's portfolio: Pick the designer who best suits your own sensibility.

The designers have 30 minutes to meet with their new clients in the workroom. While they are expected to listen to and assimilate their client's desires, they are also to be true to who they are as a designer.

We say goodbye to the ladies and head to MOOD where each designer shops with a budget of $250. The designers have two days for this challenge. And as a surprise on day two, the designers' clients return for a fitting -- with their mothers!

Gilles Mendel is our guest judge. His design work, J Mendel, demonstrates how perfectly-suited he is to judge this challenge. We were so fortunate to have him.