Jenna Jameson was arrested on suspicion of DUI early this morning in Orange County ... TMZ has learned. Law enforcement sources tell TMZ the porn queen was involved in a single car accident at around 1:30 AM after her car struck a light pole. According to our sources, Jameson showed signs of possibly being under the influence of alcohol and was given a field sobriety test . We're told she was subsequently arrested for misdemeanor suspicion of DUI. She is currently in custody and she will be cited and released.