When it comes to timeless style and an elegant demeanor, few can stack up to Carolina Herrera. The Venezuelan-born designer, who is celebrating her 76th birthday, has dressed everyone from the First Ladies of the United States (hello, Michelle Obama and Jackie Kennedy!) to Hollywood A-listers including Olivia Palermo, Dianna Agron--even providing majority of the wardrobe for Emily VanCamp's role on Revenge. "She is so elegant and classy," VanCamp tells InStyle exclusively of Herrera. "She just seems to be so beautiful, inside and out. She exudes female empowerment and beauty." We agree! In honor of the designer's birthday, we're taking a look at those who have made a statement wearing her classic creations.