Britney Spears is reportedly feeling "very nervous" and is "panicking" over the release of her ex-husband Kevin Federline's tell-all book on fatherhood.
The chart-topping songstress, 41, is thought to be worried about any revelations Kevin might make in his memoir about their previous spats.
She tied the knot with Kevin, 44, in October 2004 – but their marriage was short-lived.
The former couple divorced less than three-years later in 2007 after welcoming two sons - Sean Preston and Jayden - together.
Now Kevin is set to reveal all about raising their kids and his rollercoaster life in a tell-all book, something Britney is seemingly not looking forward to.
"She’s panicking over what Kevin is going to produce about her," said an insider – who claims Britney has penned her own book to "get her side of the story out there".
Speaking of the former couple, the source said: "They’re on poor terms right now so she’s very nervous about giving him any ammo to come at her when she does release her own life story.
"[Her husband] Sam [Asghari] and others in her team think she should wait and see what he says first, but Britney’s eager to go on the front foot and seize the initiative."
Britney has reportedly put pen to paper in a book deal thought to be around £12.3million, but 'paper shortage' is thought to have delayed its release since July last year.
The insider told Closer magazine that she hopes to get her book released before Kevin to clear the air before any of his book's claims.
"She has a lot to figure out in terms of the final content," they told the outlet. "Ultimately, this is her story so she’s free to tell it how and when she wants.
"It’s possible that she’ll rush to a conclusion in the coming weeks with her ghostwriter, and then get it on the shelves before Kevin and Jamie do."
Following their crumbling marriage, Britney spiralled into a dark place and experienced a very public breakdown in 2008.
It impacted the rest of her life as she was placed under a strict conservatorship 'for her own wellbeing'.
Kevin and Britney found themselves in a long and bitter custody battle for their sons, with their father gaining full custody as the pop singer remained under her conservatorship which lasted a gruelling 13-years.
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