Britney Spears' fianc Jason Trawick is reportedly set to become the singer's legal conservator.

The 30-year-old pop star has been under the conservatorship of her father Jamie Spears for four years following her very public mental breakdown.

TMZ reports that Britney's conservators will file a legal petition Friday asking the court to list Jason as co-conservator.

Sources inform the website that Britney's father is "thrilled" about the move, but it's rumoured that Britney desires an end to the conservatorship altogether.

"Britney has said that she feels she is ready to resume control of her life," an insider told Radar Online in recent weeks.

It is unlikely that Britney's conservatorship will be completely lifted for a long period of time.

"It looks like it won't be ending anytime soon, but Britney feels that she is powerless to fight it," the source explained. "She has been on two wildly successful worldwide concert tours, has gotten engaged, and is now in talks to join a major television show, what more does she have to do to prove to people that she is ready to resume control of her life? Britney has been told Jamie's lawyers could petition the judge for the conservatorship to end later this year, and not anytime sooner."