Demi Lovato's parents issue statement, Joe Jonas and Ashley Greene get Twitter backlash

demi-joe-ashley.jpgDisney darling Demi Lovato shocked fans on Monday when it was announced that she had left her world tour in order to seek treatment for "emotional and physical" issues that had plagued her for some time.

The story has continued to develop, and sources close to the tour now say that Lovato was spurred to seek help after getting into a physical altercation with a female tour member. According to the source, Lovato was partying with friends and believed the other girl told on her to her stepfather.