Calling it her "best day ever," pop star Britney Spears regained freedom over her life and finances on Friday when a Los Angeles judge ended the conservatorship that had restricted her for more than 13 years. "Effective today, the conservatorship of the person and the estate of Britney Jean Spears is hereby terminated," Judge Brenda Penny said after a 30-minute hearing in which no one opposed ending the court-sanctioned arrangement.