Demi Lovato's Dancer Suing Over Alleged AssaultDemi Lovato is doing well in rehab and addressing the issues that put her there, according to her father, but the Disney star has one big hurdle to conquer when she's back on the outside.

Lovato has been accused of assault by backup dancer Alex Welch, who is now threatening to sue.

reports that Welch has been forced to seek both emergency medical care and advice from a plastic surgeon relating to the injuries allegedly sustained from Lovato.