epa01125091 (FILE) A file photograph showing US Singer Britney Spears watching the Baby Phat show during the 2007 Mercedes Benz fashion week in New York, Friday 02 February 2007. It was announced 19 September 2007 that Britney Spears has been ordered to undergo random drug testing after a court official said there was evidence that she was 'a habitual, frequent and continuous' user of drugs and alcohol. Los Angeles Superior Court Commissioner Scott Gordon was ruling in a dispute between Spears, 25, and her former husband, Kevin Federline, 29, over custody of their two children. EPA/JASON SZENESScoop: After a vacation in Costa Rica, Britney Spears is back in the recording studio and doing well, according to a source who spoke to People magazine.