Britney Spears Calls Out 'Selfish Little Brat' Jamie Lynn Spears for Being 'Hateful' to Mom Lynne & Dying Her Hair 'Like Christina Aguilera'

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 ….

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 !!!”

Britney Spears is not holding back this time, and calling out her younger sister, Jamie Lynn Spears.

Here’s another side of the Jamie Lynn Spears story… from her ex’s family.

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.

Jamie Lynn Spears claims she tried to warn her older sister Britney Spears about the shady practices of one of her court-appointed attorneys, Samuel D. Ingham, and is sharing the texts she allegedly sent the singer back in 2020. During the second part of her interview on the “Call Me Daddy” podcast with Alex Cooper, the actress laid out the supposed texts she sent her sister on Nov. 11, 2020 as Britney was still in her fight to end her conservatorship.

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?

Jamie Lynn Spears is pulling out some receipts. In the second part of her interview with Spotify's podcast, Jamie Lynn claps back at those who doubt she tried to help her sister, Britney Spears, get out of her conservatorship by reading a text she claims to have sent Britney back in November 2020.Britney was placed under a conservatorship in 2008.

Jamie Lynn Spears is speaking out against Britney Spears' cease and desist letter. After Britney's attorney, Mathew S.

Jamie Lynn Spears is speaking out against Britney Spears' cease and desist letter. After Britney's attorney, Mathew S.

Lawyers for Britney and Jamie Lynn have taken over the back-and-forth between the Spears sisters. Jamie Lynn Spears’ attorney hit back at a cease and desist from Britney Spears’ team.

Daaaaamn!

This family feud has kicked up a notch!

Jamie Lynn Spears is opening up like never before. In her new memoir, , the 30-year-old actress reflects on growing up as Britney Spears' little sister, as well as her own early stardom, teenage pregnancy, and relationship woes.Jamie Lynn also gives fans insight into Britney's past conservatorship from her point of view, and reveals where things stand with her family, including her parents, Jamie and Lynne Spears, today.

Jamie Lynn Spears is recalling a painful time in her sister's life. During an interview on the Spotify exclusive podcast , in promotion of her new memoir, , Britney Spears' younger sister reflects on the pop star's romance and split from Justin Timberlake.Britney and Justin dated from 1999 to 2002, and Jamie Lynn said she remembers the former NYSYNC member «fondly.»«That was probably one of the best times in my whole family's life,» Jamie Lynn, 30, explained.

And so it continues. As Jamie Lynn Spears promotes her new book, Things I Should Have Said, the former child star is sharing new details about her family and her complicated relationship with sister Britney Spears.

Jamie Lynn Spears is opening up about her relationship with her sister, Britney Spears. In her new memoir, , the younger Spears writes about growing up with her pop star sister, Britney's much-discussed conservatorship, and why she's chosen to put boundaries up between them as of late.From the time she was born, Jamie Lynn writes, Britney, 10 years her senior, «did everything» for her, from bathing, to feeding, to diaper changes, and even became «like a second mother.»As Jamie Lynn got older and Britney's fame grew, the younger Spears, now 30, grew to consider her older sister to be her «role model.»On the flip side, Jamie Lynn writes, «As Britney’s fame grew, it caused a lot of strain on the family.»That manifested in their mother, Lynne Spears, often being away with Britney, while their father, Jamie Spears, struggled with alcohol and was in and out of the home, according to Jamie Lynn.

Jamie Lynn Spears‘ book made headlines before its release for its passages about Britney Spears, but her older sister isn’t the only topic of conversation in the memoir.