Lamar Odom has been arrested in Las Vegas ... TMZ has learned. The former NBA star was arrested and booked for driving under the influence after he was pulled over early Saturday morning. The incident is still under investigation. He was also slapped with two traffic violations -- driving more than 41+ miles per hour over the limit and improper lane change/failure to maintain lane. There's always some reason to party with Jake Paul and Dwyane Wade , and this weekend's no exception ... because