Rap music mogul Suge Knight was areested this week in Las Vegas on misdemeanor drug charges.  According to a police report, Knight was pulled over Wednesday afternoon while driving a black Bentley.  The former Death Row Records executive was pulled over for making an unsafe lane change, and his vehicle was searched when it was discovered he had an outstanding traffic warrant.  Police found less than an ounce of a controlled substance, booked Knight and released him without bail.  He is scheduled to appear in Los Vegas municipal court March 12th.  While police have not identified the substance Knight had on him, TMZ reported that it was marijuana.