A rep for the L.A. county's County Sheriff's Dept. told TMZ Lil Za was arrested for felony drug possession, adding that cocaine was in "plain view" during the raid. Officials said Bieber was not connected to the cocaine.
Lil Za is a rapper who used to live at the Canadian singer's Calabasas, Calif. home.
Police are searching Bieber's home for any evidence that might connect him to an egg-throwing incident that took place took place outside his neighbor's home last Thursday. If found guilty, the "Heartbreaker" singer could be charged with felony vandalism.