Federline took to Instagram on Thursday (11 August) to post three videos, which he claims were filmed four years ago by sons Jayden James and Sean Preston.

The first clip appears to show the singer standing in the doorway of a dark room, with her seemingly telling her one of her sons it was '[her] house' and that she had the right to enter the room if she wanted.

The following two clips seemingly show Spears in the passenger seat of a car while the boys, then aged 11 and 12, are sat in the back.

Captioning his post, Federline claimed: "I can not sit back and let my sons be accused in this way after what they’ve been through.

"As much as it hurts us, we decided as a family to post these videos the boys took when they were 11 & 12. This isn’t even the worst of it. The lies have to stop. I hope our kids grow up to be better than this. #NeverFearTruth."

Since sharing the private interactions online, Federline has been slammed by the singer’s fans, who labelled the move as ‘revenge’.

They also argued that Spears was not doing anything wrong and was simply parenting her children.

Taking to Twitter, one claimed: “Not only Kevin Federline posted private videos of a mother educating her disrespectful kids but he also asked them to record her so he could manipulate her in the future.”

Another wrote: “Coparenting is hard in any situation but what Kevin Federline has done is beyond what a good father would do.

“He is posting videos for revenge. He is alienating the mother of his children and now bringing his children into a world of online hate. Despicable!”

Last week, Federline told ITV that their teenage sons were distancing themselves from Spears after she posted near-nude selfies on Instagram.

Tyla has contacted Britney Spears and Kevin Federline's reps for comment.