Bobby Brown Arrested (Top 12 of March 2012)

Law enforcement sources tell TMZ, Bobby was pulled over in Reseda, CA at 12:20 PM PST for allegedly driving while talking on a cell phone.

Whitney Houston's ex-husband already has a DUI conviction on his record stemming from an arrest in Georgia in 1996. He eventually pled guilty to DUI and served 8 days in jail.

Law enforcement sources tell us ... cops believe Brown was DRUNK at the time of his arrest.