• Jamie Lynn Spears alleged in a new interview that Britney Spears once pulled out a knife and locked the two of them in a room
  • Jamie Lynn also claimed that her older sister often exhibited "erratic, paranoid and spiraling" behavior
  • Britney accused her younger sister of spreading "crazy lies" to promote her new memoir, "Things I Should Have Said"

Britney Spears has accused her younger sister Jamie Lynn Spears of spreading "crazy lies" following the latter's new interview.

During her Wednesday interview with "Nightline" while promoting her upcoming memoir, Jamie Lynn, 30, alleged that Britney, 40, once pulled out a knife and locked the two of them in a room

The pop icon immediately fired back at the "Zoey 101" alum, saying in a statement on Twitter Friday that Jamie Lynn "stooped to a whole new level of low."

"I've never been around you ever with a knife or would I ever even think to do such!!!" Britney wrote. "The only knife I ever saw you with at home was cutting the biggest pieces of squash I ever saw in my life and it was way too big for me to cut... So please please stop with these crazy lies for the Hollywood books!!!"

The "Toxic" hitmaker went on to call Jamie Lynn "a scum person" for allegedly making up lies about her to promote her new memoir, "Things I Should Have Said."

Britney also addressed Jamie Lynn's claims that she allegedly "got in [her] face" one time when the latter was holding her daughter Ivey, now 3.

"I'm actually very confused about you making that up because it's honestly not like you at all!!!! Around the kids???? Jamie Lynn, seriously??? Come on!!!" Britney wrote, seemingly claiming that the event never occurred. "Congrats on introducing your older sister the concept of getting LOW... LOWER... LOWEST... because you win on that one, babe!!!!"

During her sit-down with "Nightline's" Juju Chang, Jamie Lynn claimed that Britney often exhibited "erratic, paranoid and spiraling" behavior and recalled a time when her older sister allegedly once became "scared," took out a knife and locked the two of them in a room.

"It's important to remember that I was a kid in that moment," Jamie Lynn said. "I was scared. That was an experience I had, but I also was fearful to really say anything because I didn't want to upset anybody — but also was so upset that she didn't feel safe."

Britney previously slammed Jamie Lynn over the interview, accusing her younger sister Thursday of trying to "sell a book at my expense."

The "Circus" singer pointed out two things that bothered her regarding Jamie Lynn's interview. Britney said that she was bothered by Jamie Lynn saying her behavior was "out of control" and that she did not like how her younger sister responded to the backlash she received for singing her songs.

Britney claimed Jamie Lynn "was never around [her] much" 15 years ago, suggesting the latter had no reason to comment on her behavior at the time.

She also slammed Jamie Lynn for saying that the backlash to her performing a medley of her older sister's hits at the 2017 Radio Disney Music Awards was "somewhat confusing."

"I know it may sound like a silly thing to most people, but I wrote a lot of my songs and my sister was the baby. She never had to work for anything. Everything was always given to her," Britney explained.

Jamie Lynn reacted to her sister's remarks via Instagram, writing, "I hate to burst my sister's bubble, but my book is not about her. I can't help that I was born a Spears too and that some of my experiences involve my sister. I've worked hard since before I was even a teenager, and I’ve built my career in spite of just being someone’s little sister."

Jamie Lynn has received criticism from fans of the "Oops!... I Did It Again" hitmaker since June 2021, when Britney first spoke out in court against her 13-year conservatorship, which was terminated by a judge in November last year.

Earlier this month, Britney unfollowed Jamie Lynn on Instagram, but the latter still follows her older sister.

Britney Spears' representatives and fans have long accused her father of profiting from the guardianship
Britney Spears' representatives and fans have long accused her father of profiting from the guardianship AFP / VALERIE MACON