For more than a decade, Britney Spears has been subject to a conservatorship, where a judge appoints a guardian to manage the financial and personal affairs for someone who is incapacitated or incapable of making those decisions soundly on their own. According to a new court filing, the pop star says she sis "strongly opposed" to her father, James "Jamie" Spears, resuming his role as her conservator and overseer of her financial affairs and estate.