The former "American Idol" contestant was sentenced Monday to a yearlong stint at a California rehabilitation clinic and three years' probation.
Sierra, 22, was arrested last month for disorderly intoxication and resisting officers. She remained jailed Tuesday in Tampa.
In July, she entered a California rehab facility that was to be documented on the VH1 reality show "Celebrity Rehab With Dr.
Drew," hosted by Dr. Drew Pinsky.
Circuit Judge Daniel Perry said he didn't want the sentence to be another screen test for Sierra.
Perry said he doesn't "want anybody glamorizing the fact that she's a drug addict."
