"The Hills" star Stephanie Pratt said she's headed to rehab while facing drunken driving charges in Los Angeles.

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People.com reported the 30-day residential rehabilitation facility plans from Pratt come as the 23-year-old TV personality pleaded innocent Friday to DUI charges in a Los Angeles court.

Pratt said being arrested on suspicion of drunken driving in October "was the worst thing to happen to me and, at the same time, it was the biggest blessing," People magazine reported.

People.com said if Pratt is convicted on misdemeanor DUI charges, she could face up to six months in jail.