The Simple Life 'The Simple Life' star Nicole Richie pleads not guilty to DUI 02/20/2007 Nicole Richie pleaded not guilty Tuesday to a misdemeanor count of driving under the influence, the Los Angeles County District Attorney's office said. Read More RELATED NEWS Paris Hilton: "I could have been like" Princess Diana before sex tapeFormer 'The Simple Life' star Nicole Richie marrying Joel MaddenFormer 'The Simple Life' star Nicole Richie gives birth to baby boy TAGS: The Simple Life Nicole Richie