The X Factor judge
Demi Lovato has worked hard to regain her wholesome image, butRadarOnline.com has exclusively learned that the former Disney star is still partying hard behind the scenes.
Despite a stint in rehab for "emotional and physical issues" in November 2010, those close to Demi say there are a few habits she didn't drop.
"Demi has really busted her butt to get her career back after the incident with ...