Inspirational songstress and X Factor USA panelist Demi Lovato has revealed that her bipolar diagnosis was a relief because it has shown her that she isn't "crazy".

Speaking on a personal level to Cosmopolitan magazine in America, the 'Give Your Heart A Break' hitmaker explained that now when she feels as though she's going through a bad patch she can recognise her behaviour and is able to reach out for appropriate help:

"I felt relieved when I found out, like, 'I'm not completely crazy; there's a medical reason for all of it'."

"It's a daily thing; you don't get time off from it. And if I feel myself slipping back into old patterns, I have to ask others for help, which is hard for me to learn, because I really like doing everything on my own."

She has been enjoying her new role as a vocal talent judge on X Factor USA, alongside Britney Spears and Simon Cowell, and tweeted a message to her fans on May 25 to let them know she is putting her all into it:

"Such an amazing day...can't wait to do it again!!! #XfactorUSA"