'You Are Scum': Britney Spears Straight Up BLASTS Jamie Lynn In Most Heated Post Yet

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 ….

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.

The Spears family drama isn't dying down. Britney Spears took to Instagram on Friday to ream out her younger sister Jamie Lynn Spears for coming out with a memoir about her family at such an "unbelievable" time. "National best seller ???? DUH ….

Stuck in the middle. Sam Asghari’s response to Britney Spears and Jamie Lynn Spears‘ recent drama suggests that the pop singer’s fiancé just wants their “war” to be over.

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.

Jamie Lynn Spears' memoir,, a source tells ET that this has «been a trying» and «painful» time for the 30-year-old actress as she discusses past experiences.While promoting her new book, Jamie Lynn has had a back-and-forth with her older sister, Britney Spears, on social media about the stories told about their relationship over the years. The source tells ET that it was never Jamie Lynn's intention to hurt her sister.«Jamie Lynn has genuinely always wanted the best for Britney and she loves Britney with all of her heart, despite their complicated relationship,» the source says. That being said, the siblings aren't exactly close.

Britney Spears has continued to put her little sister Jamie Lynn Spears on blast as their public feud rages on. Since her conservatorship ended, American hitmaker Britney, 40, has been locked in a bitter war of words with her 30 year old sister, who is currently promoting her new tell-all book, Things I Should Have Said.

Daaaaamn!

Britney Spears' fiery public feud with sister Jamie Lynn Spears continues. Spears 40, took to Instagram Wednesday to repost a statement she deleted quickly after posting Tuesday.

Britney Spears has hit out at her sister Jamie Lynn in a scathing rant on Instagram.The Toxic Singer, 40, said she should have "slapped" her sister and mum Lynne "across their faces". Singer Britney has been locked in a bitter feud with her 30 year old sister since the end of her conservatorship, as Britney unfollowed her sister on social media. Britney's latest post saw her claim her younger sister had an easier childhood.

Britney Spears is taking action. The 40-year-old pop star and her attorney Mathew Rosengart have taken legal action against her father Jamie and sister Jamie Lynn as the court battle regarding her 13-year conservatorship drudges on.

Britney Spears wants her younger sister to stop mentioning her or sharing stories about her while promoting her new memoir.Jamie Lynn Spears has been sitting down for interviews and discussing her high-profile feud with the pop superstar amid the launch of her new memoir, Now, Britney' lawyer, Mathew S. Rosengart, has sent Jamie Lynn a cease and desist letter calling on the alum to stop discussing her sister's life during interviews, and threatening further legal action if she refuses.«We write with some hesitation because the last thing Britney wants is to bring more attention to your ill-timed book and its misleading or outrageous claims about her,» the letter begins.

Britney Spears, 40, is taking a legal step when it comes to her public feud with her younger sister Jamie Lynn Spears. The singer asked her attorney Mathew S. Rosengart to issue her 30-year-old sibling a cease and desist letter, which was obtained by Page Six, that demands her to leave her out of her book tour for her just released memior, Things I Should Have Said, and says that she “will no longer be bullied” for the point of book sales.

Britney Spears continues to call out her sister Jamie Lynn over social media. In a since-deleted post, Spears referenced returning home after her breakup with Justin Timberlake.  Jamie Lynn also talked about the time following the breakup from her own perspective in Wednesday's "Call Her Daddy" podcast episode.

Britney Spears is sharing her thoughts on sister Jamie Lynn Spears‘ latest interview.