Britney Spears' conservatorship has been extended.

The 'Toxic' singer's father Jamie Spears - who was made co-conservator of her personal and professional affairs after her public breakdown in 2008 - will remain in control of her life, a judge has ruled.

Although it is not known how long the conservatorship will remain in place, lawyers involved in the case expect it to last between six and 12 months.

Under the ruling, Britney will pay Jamie $16,000-a-month, while his co-conservator, lawyer Andrew Wallet, received $174,569.10 for his services between July 2009 and November 2009.

Earlier this month, it was reported the mother-of-two's conservatorship could end.

Jamie had met with lawyers and wanted a judge to review the conditions of the agreement following the conclusion of Britney's 'Circus' tour.

It had previously been claimed Britney feels "completely out of it" because her father is so controlling.

A source said: "She is so out of it she just doesn't care anymore. She just does what she's told and is totally in her world.

"She'll even call people at all hours of night for a general conversation and acts like it's the middle of the day or something."