Demi Lovato.

http://en.wikipedia.org/wiki/Demi_Lovato

I'm not that much into Disney shows, and I typically don't have celebrity crushes, but... wow, Demi Lovato is so amazing. She has a beautiful voice and is a very good actress. That and she's hot as fuck.

If you check out her bio, I'm sure you'd be surprised with a lot of things that have happened to her in her life, and going through the same stuff when I was a kid it makes me able to relate to her.