Vera Wang's Red Carpet Gowns

When Keira Knightley wore this one-shoulder mermaid ball gown to the Oscars® in 2006, you may have noticed the beautiful iridescent color and the pleated taffeta that Vera says has an almost origami effect.

"What you all can't see at home when you're watching this is that the dresses are structured inside," Oprah says. "They build it to fit your proportions. That's why you look so darn good in it!"