Gwyneth Paltrow might have wowed us all during her Iron Man promos by wearing teeny, tiny dresses and giant heels, but the fashion-forward blond is getting ready to promote something else, this time wearing a t-shirt.


Paltrow is joining Saks Fifth Avenue's and the Entertainment Industry Foundation's Key to the Cure, which raises money and awareness for breast cancer research. She'll appear in the ad campaign wearing a Karl Lagerfeld-designed tee, about which she said, "It doesn't look like it's printed. It looks like somebody drew on the shirt, and it's sweet and it's cool at the same time. It looks quite homemade, which I really like."

The t-shirts, which will be available at Saks starting October 1, will cost $40, nearly all of which will go directly to breast cancer research. Some limited edition Mercedes Benz vehicles will be available to benefit the cause as well, if that's more your style. We think they'll probably cost a bit more, though.