She was a Disney channel starlet on a show called Sonny With A Chance and she had a pop music career early on as well. She had to leave her show to enter a treatment program for an eating disorder and cutting. She is something of a spokesman for mental health issues and continues to have a pop career. I will say, by teenybop standards, she has some of the more complex stylistic styling of that genre. (I maintain that Heartattack is one of the more interesting, composition and structure-wise, songs to hit the top 10 in years.)