Demi Lovato is really living her dream!

The 17-year-old starlet has been tapped to guest on one of her favorite shows, Grey’s Anatomy, for a May sweeps episode, according to TV Guide magazine.

Demi will play a patient at Seattle Grace/Mercy West who will be treated by Alex (Justin Chambers) and Arizona (Jessica Capshaw) for possible schizophrenia. Such a contrast from Sonny!

Demi’s boyfriend Joe Jonas tells the mag, “I’m really proud of her. It’s really amazing. She totally deserves this and this is a dream role for her. It’s great people are going to see her do different things.”

ARE YOU EXCITED to see Demi on Grey’s?