People News Demi Lovato not undergoing treatment for drugs or alcohol addictions 11/10/2010 Demi Lovato is not undergoing treatment for addictions to drugs or alcohol despite reports claiming she is, a publicist for the U.S. singer and actress said. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Demi Lovato Sonny with a Chance