As one of the most-talked-about hairstyles of the Oscars, we couldn't take our eyes off of Reese Witherspoon's hair. Our main question: Were hair extensions responsible for the volume? The answer: no! That's the actress' real hair, they say. The hair stylist responsible for the big, bouncy mane: Frederic Fekkai's Renato Campora, who channeled the mod-'60s.