Bam MargeraProfessional skateboarder and 'Jackass' personality Bam Margera is in the hospital, TMZ reports.

Margera was attacked by a woman with a bat outside of his bar in West Chester, PA.

Cops explained there was a fight and then the attacker hit Bam on the back of the head with a baseball bat. Police arrested her and charged her with assault.

The former MTV star was taken to Chester County Hospital, but his current condition is unknown.