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!
The Harry Potter wiz is spell-bindingly sweet and adorable in this vintage Ossie Clark dress at the Half Blood Prince London premiere.
The Pretty Woman accepted her Best Actress Oscar in this now famous black-and-white Valentino gown from the designer's archives.
You can count on this clothes horse to have plenty of vintage in her closet, including this awesome—though slightly oversize—persimmon gown that made waves at the 2010 CFDA/Vogue dinner.
For a Nylon bash in L.A., the adorable star said she picked up this colorful printed Janine dress at a vintage shop in Austin, Texas, for $25. It's inexpensive, chic and eco-friendly—score!
Amid the sea of strapless ballgowns at the Academy Awards, SJP was a standout in a butter-yellow column gown from the house of Chanel. Carrie Bradshaw would approve.
Felicity Porter's alter ego is pretty in pink in old-school Jean Louis Scherrer.
How can you guarantee that no one else will be wearing the same dress on the red carpet? Go vintage, natch. The younger Simpson sis gets her hands on a fab Chanel sequined LBD accessorized with statement earrings.
The Closer star isn't the first celeb to recycle this chic style from Thierry Mugler. Kim Kardashian also wore the knee-length version recently.
Awww, Glee's new star must've been singing a happy tune when she got the chance to wear this black-and-blue tea-length dress from Chanel.
We can't think of anyone else who has the confidence and natural elegance to pull off this magnificent Christian Lacroix Haute Couture burgundy gown than Cate. We bow down.
Recycling never looked more fab. At the 2011 Oscars, the adorable actress rocked a body-hugging white Herve L. Leroux
Retro styles totally suit this quirky fashionista, like this love-it-or-hate-it Lily et Cie 1950 Charles James gown the actress donned for the 2011 Academy Awards.
PHOTOS: Stars in Green