People News David Cassidy ordered to 90-day rehab stint 03/25/2014 David Cassidy was ordered to enroll in a 90-day live-in rehab facility after he pleaded not guilty to his January DUI arrest. 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: David Cassidy The Partridge Family