Demi Lovato on Grey's Anatomy: First Photo

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One could forgive Demi Lovato for being star struck meeting the Grey's Anatomy cast in preparation for her guest role, but the 17-year-old is no slouch herself.

The Disney mainstay will be portraying a frightened patient named Hayley who may suffer from schizophrenia (see claw marks in the intense promo pic below).

Grey's Anatomy is a dream role for her,” says her Camp Rock co-star and real-life boyfriend Joe Jonas. “It’s great people are going to see her do different things."

"I’m really proud of her.”

If Joe's proud of Demi, who's been catching up on past Grey's Anatomy seasons during breaks from filming the Camp Rock sequel, than so are we. So are we.

Demi on Greys

Demi Lovato is coming to Grey's Anatomy May 13. The following week, Mandy Moore will be guest starring on the long-running medical drama's two-hour season finale.

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