Demi Lovato will play a frightened patient named Hayley, who might suffer from schizophrenia, see the claw marks in the photo from TV Guide. A new fan of the show, Demi began catching up on Grey's Anatomy during breaks on the set..

..of Camp Rock: The Final Jam. Boyfriend Joe Jonas said: 'Grey’s is a dream role for her. It’s great people are going to see her do different things. I’m really proud of her.' Though he prefers Top Chef over medical dramas.