Good Charlotte rocker Joel Madden is being investigated by the Beverly Hills, California, police department over claims he attacked a female photographer.
According to police sources, the woman alleges Madden violently confronted her when she attempted to take his picture on Saturday (03MAR07).
The photographer claims Madden then swung his arm and struck her on the left breast "with the heel of his hand" and she had to seek medical treatment.
Hours later, Madden was videotaped forcefully shoving another photographer outside popular Beverly Hills restaurant Mr Chow, while trying to clear a path for his girlfriend, Nicole Richie.
Police representatives tell website TMZ.com they are taking the photographer's claims seriously and a report was taken regarding the incident.