Britney Spears Reveals What Happened After She Broke Up With Justin Timberlake, Says She Should Have 'Slapped' Her Mom & Sister

Britney Spears and Jamie Lynn's social media feud continued on Monday as the pop star seemingly called out her sister for being "so cruel" in an Instagram post. Spears, 40, re-shared a video of herself working out.The "Toxic" singer wore a bright yellow cropped top and black shorts.

After Janet Jackson, 55, revealed there’s no bad blood between she and Justin Timberlake, 40, after their 2004 Super Bowl performance, Justin is reportedly “relieved” he can be exonerated from public scorn. “Honestly, Justin is relieved that Janet let everyone in on the truth about their friendship because he was tired of hearing about it and having to answer questions about it,” a source EXCLUSIVELY revealed to HollywoodLife. “It was so long ago, yet it still is something very painful for him, and he imagines for Janet, too.

Somehow, this decade-old drama is still heating up!

Who’s a “Bad Liar” in the Spears family? That’s the topic du jour, and Britney Spears is playing around with that idea in a recent Instagram video, dancing to the Selena Gomez hit. “Me and the song Bad Liar,” the 40-year-old wrote in the caption, adding a slew of rolling eyes emoji. “How appropriate is that ???”

The feud between Britney Spears and her sister Jamie Lynn Spears keeps growing, now that the iconic sister claims the Nickelodeon actress should take a lie detector test.The 40-year-old artist posted a lengthy message sharing her thoughts on Jamie Lynn’s best seller book, declaring that the timing of her book release was “unbelievable,” refering to Britney’s new found freedom following the end of her 13-year conservatorship, in which she experienced difficult and traumatizing situations.Britney went on to accuse her sister of lying, posting a video from a recent episode of ‘The Real,’ where the hosts talked about the information in Jamie’s new memoir ‘Things I Should Have Said.’“National best seller ???? DUH…. the timing of your book was unbelievable Jamie Lynn … especially knowing the whole world had no clue what was really done to me !!!!” Britney continued, “My whole family including you is saying YOU DIDN’T KNOW ….

Britney Spears and Jamie Lynn Spears is seemingly not going away anytime soon, as the «Toxic» singer once again slammed her sister as «scum» over her memoir, .Britney took to Instagram on Friday and posted a lengthy caption in which she goes after Jamie Lynn for a myriad of reasons, from the timing of her book and sarcastically congratulating as a «best seller» to accusing her of lying.

Adding fuel to the fire. Amid Britney Spears and sister Jamie Lynn Spears’ latest social media drama, the Grammy winner has seemingly taken it up a notch.

Britney Spears has branded her sister Jamie Lynn as "scum" in another furious rant.Toxic singer Britney, 40, hit out at her younger sibling Jamie Lynn, 30, as she shared a clip of The Real talkshow hosts discussing Jamie Lynn's recent book release.The talkshow hosts were seen defending Britney in the clip as one says: "If you wanna clear your name who is it important to clear your name to? Your sister or the masses of people?" Britney then hit out at her sibling in the caption as she wrote: "National best seller ???? DUH Get exclusive celebrity stories and fabulous photoshoots straight to your inbox with OK!'s daily newsletter. You can sign up at the top of the page.

Holy cow, this may be the most direct repudiation Britney Spears has launched at her sister!

Britney Spears will not be silenced anymore! The “Baby One More Time” singer slammed her sister Jamie Lynn Spears once again as her tell-all book Things I Should Have Said continues to clear shelves. In a scathing Instagram post, the singer mimicked her sister’s new title as a “National best seller.” “The timing of your book was unbelievable Jamie Lynn … especially knowing the whole world had no clue what was really done to me !!!!” She exclaimed. “My whole family including you is saying YOU DIDN’T KNOW …. Bullshit !!!”

Over on social media, a new post is prompting fans to ask the following question: Is Britney Spears pregnant? The “Toxic” singer appeared to hint at having pregnancy symptoms during a recent vacation in Maui with her fiancé—but this isn’t the full picture.

Britney Spears has been swamped with family drama but fortunately, she has the support of her loving fiancé Sam Ashgari. She just broke free from the conservatorship her father Jamie Spears put her under and she has been feuding with her sister Jamie Lynn Spears but a source close to Britney told HollywoodLife EXCLUSIVELY that Sam has been helping her cope. “Britney has appreciated Sam more than ever and he has really been there for her in every way,” the source shared.

As the very public feud between Jamie Lynn Spears and Britney Spears heats up, it appears the “Toxic” singer’s ex Justin Timberlake wants no part of it. In case you missed it, Jamie Lynn wrote about the Justin and Britney’s 2002 breakup in her new book, Things I Should Have Said, saying she was “deeply affected” by the split. Then Britney, 40, posted on social media that she should have “slapped” Jamie Lynn, 30, soon after the Justin breakup for being “selfish.” So, where does all this leave the “Can’t Stop the Feeling!” singer?