Filming her guest starring episode this week, Demi will portray a young patient whom Arizona and Alex find having psychological problem.
When Demi Lovato tweeted that she would begin "a week of fulfilling one of" her biggest dreams, she meant a guest starring role on "Grey's Anatomy". The star of Disney Channel's "Sonny with a Chance" personally announced the good news on Twitter, writing "I'm so thrilled to announce that this week I'm shooting Grey's Anatomy!!!!!!!! :D AHHH!!!!"
A few hours later she wrote, "By the way... Mr. Patrick Dempsey himself wants me to give a shoutout to you guys! hahahaha so awesome." Creator Shonda Rhimes also shared a word about Demi's involvement, tweeting "Demi Lovato's on the Grey's set filming her guest spot. Everyone's super excited around here."
Demi will play a schizophrenia patient who is treated by Justin Chambers' Alex and Jessica Capshaw's Arizona. Her episode will air in May.