Britney Spears was videotaped entering the Cedars-Sinai Medical Center on a stretcher after being transported by ambulance and several police cars, with several paparazzi and news crew members swarming the scene. Also seen arriving was Britney’s ex-husband Kevin Federline, who was bizarrely attacked verbally by the paparazzi and branded a “loser” by the snappers. Watch footage via YouTube below.