'Project Runway' Sneak Peek: Competitors Design for Jordana Brewster (Exclusive Videos)

The "Dallas" star serves as guest judge for a challenge in which the designers finally get to show off their own aesthetic.

The Project Runway designers finally get to show off their own aesthetic after working in teams all season.

In Thursday night's episode, each designer is partnered with a "sewing assistant" to help them create editorial-worthy looks. The winning design will be worn by guest judge Jordana Brewster (Dallas) in the May issue of Marie Claire magazine.

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The Hollywood Reporter has two exclusive clips from Thursday's episode. In one, mentor Tim Gunn shares his advice on a design in the works by competitor Michelle Lesniak Franklin, whose gets some help from previously ousted designerAmanda Valentine.

In the second one, the judges debate which designer to send home. (Warning: Spoiler alert! The names of the designers who land in the bottom are revealed.)

Project Runway airs at 9 p.m. Thursdays on Lifetime, which announced Wednesday that the final three episodes have been expanded to two hours and that a reunion special will air May 2.