Nicole Richie pleaded guilty Friday to driving under the influence of drugs and was sentenced to 90 hours in jail and fined $2,048 by a judge who said she was lucky nobody was killed when she drove the wrong way on a freeway.

She was ordered to enroll in a second-offender drug and alcohol program and must prove that she completed it by Feb. 20, 2008.

“You are not to drive with any measurable amount of alcohol or drugs in your system,” Lubell told her. “You are not to drive without a driver’s license.”