Britney Spears' lawyer warned that her ex-husband Kevin Federline could face several legal issues, including cyber-bullying statutes, after posting videos of the singer yelling at their two sons on Instagram.

On Thursday, Spears' attorney Mathew Rosengart defended his client after Federline posted videos in which the "Baby One More Time" singer appeared to be reprimanding and arguing with her sons, who were ages 11 and 12 at the time.

Rosengart claimed Federline violated Spears' privacy and the singer would "not tolerate bullying in any area."

"Britney Spears is a brilliantly talented, extremely hardworking icon, who is rightfully beloved and respected by millions around the world," Rosengart said in a statement.

"The same, unfortunately, cannot be said about Mr. Federline, who for reasons that are inexplicable, decided to give a gratuitous interview that has hurt the mother of his children."

Rosengart also referenced Federline's recent interview with ITV in which he claimed Spears' sons have decided not to see their mother.

Federline claimed he shared the videos to explain why the boys have distanced themselves from Spears.

"Britney has faithfully supported her children, and she loves them dearly. Whether he realizes it or not, Mr. Federline has not only violated the privacy and dignity of the mother of his children, he has undermined his own children, whose privacy he should protect," Rosengart continued.

"Putting aside his ITV interview, Mr. Federline's ill-advised decision to post an old video of his 11 and 12-year-old children was cruel, bottom-of-the-barrel stuff. It was abhorrent."

Federline's decision to post the video could result in legal consequences, according to Rosengart.

"In addition to demeaning himself and violating societal norms, he has now also created various legal issues for himself, including, but not limited to, implicating cyber-harassment and cyber-bullying statutes, among other things," the attorney stated.

Rosengart noted he was working with Instagram to make sure Federline follows the rules of the social media platform.

"We are working with Instagram to ensure that Mr. Federline adheres to its rules, and we are exploring all appropriate relief against him," Rosengart said.

"In the meantime, as Britney poignantly said, whatever is occurring between her and her boys should remain private. We urge Mr. Federline to act with a measure of grace and decency and to cease from publicly discing private matters, which benefits no one."

Rosengart's statement comes after Federline posted the videos on Wednesday evening. As of Thursday morning, the videos have been deleted from Instagram.

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