Demi Lovato has become the poster child for sober living in Hollywood, but there are rumors that she may not be practicing what she preaches.
Despite a three-month rehab stay in November 2010 for drug use, eating disorders and self-harm, a source close to Demi has claimed the X Factor judge is "not as sober as she's leading everyone to believe and is still partying hard." Not only that, the same source told Radar Online that the only thing Demi has learned is how to keep the paparazzi from catching her in the act. Whoa!
What did Demi's rep have to say about the allegations? Find out after the jump!