Britney Spears' father will maintain indefinite control of her personal and financial affairs after a court commissioner extended the arrangement beyond 2008.

The conservatorship, which had been set to expire Dec. 31, also allows the people controlling Spears' affairs — a group that includes father Jamie Spears and several attorneys — some say in her professional career.

It's a move the singer apparently approves: A court-appointed attorney said the details had been explained to the 26-year-old and she agreed not to oppose it.

Spears could petition later to have the conservatorship removed, but the court's order otherwise constitutes a lifetime arrangement, a court information officer said. Attorneys for Jamie Spears declined to comment after the hearing.

Los Angeles Superior Court Commissioner Reva Goetz said Tuesday she was granting the permanent conservatorship in part because Britney Spears has shown she is "susceptible to undue influence."