The pop diva said Thursday she had parted ways after nine years with Larry Rudolph, the man who turned the 22-year-old into an international star with record sales of 60 million, Hellomagazine.com said.
"We had a great run and I appreciate all of Larry's guidance over the years. I wish him all the best," Spears said in a statement.
Rudolph released a statement saying he and his client "mutually agreed" not renew the management contract.
Spears also filed the proper paperwork for her marriage to Kevin Federline, a technicality overlooked when the pop singer hastily planned her surprise wedding last month.
It's all legal," Spears' spokeswoman said of the union.