Taylor Swift debuted a very different look when she went to work on the set of The Giver in Cape Town, South Africa, yesterday with brown, wavy hair. However, the darker locks are just movie magic, as Taylor let her famous blond hair flow freely while grabbing dinner with castmates Alexander Skarsgard and Katie Holmes after wrapping up filming. Taylor had more movie news for her fans last night when she released her latest single, "Sweeter Than Fiction," for the upcoming film One Chance. The John Hughes-inspired track was cowritten by Jack Antonoff, the guitarist for Fun. and boyfriend of Taylor's pal Lena Dunham.