So it seems that before Demi Lovato checked herself in for treatment of personal issues...she kirked out on one of her back up dancer.
Seems as though her backup dancer Alex Welch...she's a member of Beat Freaks...they actually came in as runner-up title on season 3 of America's Best Dance Crew.
Well supposely she got loose with the info and ratted Demi out for partying. So then allegedly she punched the girl in the face and she's now got a black eye...and thinking about suing Demi over the incident.