An overzealous Madonna fan has been sentenced to six months in jail for a second charge of trespassing at the singer's Hollywood Hills home.

Robert J. Wasserburger, 28, pleaded no contest Wednesday. He was found on Madonna's property Dec. 12 after ringing the bell at her gate 30 times and claiming to be her brother and a police officer, said Ted Goldstein, a spokesman for the city attorney's office.In October, Wasserburger was sentenced to 30 days in jail for trespassing and ordered to keep at least 100 yards away from Madonna's property.