Troubled singer Britney Spears rushed to a Los Angeles medical centre last night (25MAR07) after breaking a tooth. The TOXIC hitmaker, 25, visited the Century City Medical Plaza following the dental accident. A Plaza employee tells Us Weekly, "She was smiling for the cameras, but the moment she got into the elevators she was complaining to her bodyguards that it was unfair her tooth was broken, but she couldn't take painkillers." Spears was released from the Promises rehab facility last week (ends23MAR07) after completing a month long treatment for unspecified substance abuse problems.