London, Jan 20 : While much has been written about Britney Spears and her career, the popstar has now taken the pen in her hand to write her autobiography.

In one of the most lucrative book deals in showbiz history, the `Womanizer' star has reportedly signed a 10million dollars publishing deal for a no-holds-bar account of her roller-coaster career.

And the 27-year-old star would begin writing as soon as her sell-out world tour gets over.

"There have been numerous unofficial biographies printed about Britney, but she''s never agreed to pen her own tome - until now," The Mirror quoted a source as saying.

The source added: "And some of the stories she''s got are absolute dynamite. She''s kept diaries so there''s nothing she''ll leave out unless she wants to.

"If the deal goes ahead she will write between three and five books throughout the next decade - it''s one of the most lucrative book deals in showbiz history.

"Britney will talk frankly about growing up and how she went off the rails. It''ll be a gripping read." (ANI)