Demi Lovato believes that being open about her problems has made her a better ''role model'' for her fans.

Lovato said finds it "therapeutic" to be open about her ordeal and hopes by publicly addressing her struggles, she can help more people.

The 18-year-old star went to rehab last November for three months to receive treatment for her eating disorder and issues with self-harm.

She said: "The more that people tell their story, the more therapeutic it becomes. Also, if I'm able to share my story and it helps someone, then I've done my part.

"My fans are dealing with some of the same issues. And if I am a role model, then I need to speak up and be there for them."

Watch Demi Lovato's interview with Ryan Seacrest about what led her to seek treatment: