Britney Spears was arrested for a DUI on Wednesday night, and now we're learning more details about what happened. According to several sources close to the pop star who spoke with TMZ on Thursday, after she was pulled over by cops, Britney was taken to the hospital, where she spent some time early Thursday morning. While she wasn't injured, California Highway Patrol officers took her there to draw her blood to determine her blood alcohol content. The artist was alone when she was pulled over in Westlake Village, which is near her home.