Choosing vintage is a fabulous way to be eco-friendly—you're recycling clothes, after all. And as these celebs reveal, going green can be utterly glamorous and stunning. Click in to see how the stars did it up.
Spanish beauty Penélope looked gorgeous at the 2010 Academy Awards in a strapless Pierre Balmain haute couture gown that's more than 60 years old. Muy bonita!