Lindsay Lohan's stepmom arrested

LOWER MACUNGIE TWP., Pa. -- Lindsay Lohan's stepmother is facing charges for her alleged antics on a tour bus.

Pennsylvania State Police say Kate Lohan was drunk on a bus on Christmas Day.

She was reportedly upset that she missed her stop. So, Lohan allegedly attacked the driver, and even tried to drive the bus.

She faces charges, including DUI and disorderly conduct.

Lohan lives in Florida, but reportedly has family in Pennsylvania.