Fans of Britney Spears criticized her ex-husband Kevin Federline following his declaration that he was writing a tell-all book about the pop star, titled You Thought You Knew.

Federline, 47, annoyed the devoted fans of the Grammy-winning artist, 43, by claiming in a press release that his book would disclose ‘extremely intimate and transparent’ details regarding their ‘highly publicized marriage.’

Federline remarked about his forthcoming book, ‘I reached my greatest ambitions, faced overwhelming heartbreak, and endured relentless mockery, all while becoming the father my children needed as they went through ongoing emotional upheaval.’

Federline, who was wed to Britney from 2004 thru 2007, added that ‘if you’ve ever had questions, you’ll find answers here.’ 

But loyal supporters of the …Baby One More Time songstress – who shares sons Sean Preston, 19, and Jayden, 18, with Federline – weren’t interested in the book, which is slated to be released October 21. 

Daily Mail has reached out to Federline via Instagram for comment on the backlash to the release of the forthcoming book. 

Fans of Britney Spears, 43, slammed her ex Kevin Federline, 47, in the wake of his announcement he was penning a tell-all about the pop superstar 

The former couple was married from 2004 until 2007, and share two sons

Fans of Spears took exception with Federline for rehashing his past with the Womanizer artist in what they felt was a blatant cash grab. 

‘So, no one would buy his story, so he thinks people want to hear him read his notes app life story?’ asked one user, while another said, ‘Damn, he REALLY needs money!’

Said one Reddit user: ‘That child support dried up realllllll quick,’ while another chimed in, ‘His timing tells you everything.’

One user on X referenced another of the Lucky singer’s famous exes in slamming Federline.

‘Instead of writing fanfiction novels he should go back and tour with Justin Timberlake so they can both cry endless rivers,’ the user said. ‘It’s tiring.’ 

One Reddit user added, ‘I suggest on his release date, let’s all buy a copy of Britney’s book and get her back on the charts.’

In addition to his sons with the Oops!… I Did It Again vocalist, Federline is father to daughter Kori, 23, and son Kaleb, 21, with actress Shar Jackson, 48.

He is also father to daughters Jordan, 13, and Peyton, nine, with his wife, former volleyball player Victoria Prince, 42.

One user on X alluded to another Britney ex, Justin Timberlake, in slamming Federline 

Multiple social media users made clear they had no interest in reading Federline’s memoir 

Federline took a beating on a Britney Spears subreddit amid news of his forthcoming book

One X user said of Federline’s ties to show business: ‘He was a dancer, knocked up 2 celebrities, abandoned the 1st one and their kids while she was still pregnant then married the more famous one and took her kids for the child support money.’

According to the news release, ‘The public unraveling of Britney’s life and the constant attention around their family forced Kevin to balance being a father with being a protector.’

Some fans expressed concern Britney could be emotionally impacted for the worse with her ex-husband bringing their past dirty laundry back into the public consciousness. 

‘Ah great…another person reopening her wounds and bringing more judgement her way,’ a Britney fan said.

Federline rode the wave of notoriety from his marriage to the A-list songstress into a pro wrestling stint in which he feuded with iconic WWE star John Cena. Pictured in 2007 in Miami 

A Reddit user noted, ‘Britney has been through enough. Now this? My heart goes out to her and I hope she slams him.’ 

One Britney fan referred to the 2022 book penned by her sister Jamie Lynn Spears, Things I Should Have Said.

‘Guess he didn’t see what happens when Jamie Lynn attempted to mooch off Britney w her book,’ the fan said.

Federline in the book also will detail his time as a dancer for Michael Jackson, Destiny’s Child and Pink, according to the news release.