debuted a shocking hair color transformation via Instagram: the 28-year-old and blonde for as long as we can remember is now—gasp—a redhead! And we don't mean she got red highlights ...

Caramel and bright blonde highlights ... A rich red with caramel undertones and grown-out roots brings a rosy glow to Hoyeon’s fair complexion. Since reddish hair colors are some of the hardest ...