Exclusive: Elisabeth Moss Rates The 'Runway'

The costumes worn on Mad Men are, indisputably, the most luxurious on television, and a wonderful by-product of all that sartorial salivation has been the red carpet domination of stars January Jones, Christina Hendricks and Elisabeth Moss.

PHOTOS - Mad Men's Sexy Season Six Styles

This Thursday, Moss puts her keen fashion eye to the test as a judge on Project Runway: All Stars and ETonline scored an exclusive clip from the episode, titled As Sewn on TV.

The six remaining designers are challenged to create a stunning red carpet gown and former winner Seth Aaron finds his design in the judges' crosshairs. Watch!

Project Runway: All Stars airs Thursdays at 9 p.m. on Lifetime.