Nancy, 44, is an Irish step dance instructor whose fashion sense is badly out of sync. With a vast wardrobe of T-shirts, sweatshirts and leggings, Nancy dresses for comfort — not for style.

Lords of the fashion dance, Stacy London and Clinton Kelly will try to teach Nancy to jig to the beat of a new, chic drum. But will Nancy's record $4,000 clothing haul on her first day of shopping follow their rules? And watch Nick Arrojo get his moves on as he gives her a very short haircut, while Carmindy ditches Nancy's 1980s makeup for a more updated look.

Let's hope Nancy's Irish eyes are smiling as she learns What Not to Wear.

Check out Nancy's fashion rules, mannequins, shopping lists and makeover details!