"Watching Lovato reflect on her experience showed me the reality of what my life could have become."
TBT to when she and Joe Jonas made their "Camp Rock" romance IRL.
"Dancing With the Devil" kicks off March 23.
She still has brain damage after suffering three strokes and a heart attack.
It's her first big performance since her breakup and she looks so happy.
POTUS Joe Biden and FLOTUS Jill Biden were emotional watching her from the White House.
"All boobies are beautiful," she captioned the post.
She looks incredible, of course. What can't she pull off?!
She sings about how someone "stole" her "light."