Fallen, troubled Disney star, Demi "Floyd Mayweather" Lovato, 18, who is currently in rehab for drug problems, is going to be sued by her back-up dancer, Alex Welch, on charges of assault. Lovato hit Alex Welch so hard, it knocked her off a stool and left her with a black eye. Wow, these Disney stars really have issues.

Girlfriend has a case. If you take the risk of sucker punching a woman that is reportedly getting too close to your boyfriend, leaving her with a shiner that can be seen from space, you have just placed yourself firmly in jeopardy of a lawsuit. Lovato still has not apologized.