Teen star Demi Lovato is the target of hate mail by jealous girl fans obsessed with her Disney co-stars The Jonas Brothers.

The young actress has had to deal with the criticisms and cat-calling that come with being close to the teen heartthrobs, who she stars alongside in new Disney musical Camp Rock.

And Lovato wants to make it clear to the sibling trio's adoring fans that she is not dating any of the brothers.

She says, "Imagine being new to Disney, and your first big job is being the romantic interest of one of the biggest heartthrobs on the channel. Any girl that is a friend of the Jonas Brothers gets hate mail and is automatically suspected as a girlfriend.

"'Joe and I never dated. We're really good friends. I just think it's funny that people try to pin me to them. It's like, Oh, come on! I think (if I were going to), I would have dated one of them by now!"