Salma Hayek has shared a stunning hair transformation, leaving fans wowed.The actress posted a gorgeous throwback picture which showed her with a sleek and stylish bob.The picture, taken several years ago, was jokingly captioned: "Throwback to a time where you could sign autographs with your mouth open and no mask.""So beautiful," shared one fan as another called her "bella," which is pretty in Spanish.MORE: Salma Hayek celebrates love in stunning selfie A post shared by Salma Hayek Pinault