Jamie Lynn Spears was called "Scum" by her sister.

The singer Britney Spears blew up at her sister Jamie Lynn for using her image

to sell more copies of her new autobiographical book.

Jamie Lynn Spears, best known for being the younger sister of singer Britney Spears,

went for an interview with anchorwoman JuJu Chen.

In the interview, Jamie did express herself about the whole conflict with his sister.

However, he also did make the point that before coming under her father's guardianship,

the 'Princess of Pop's behavior was erratic and even paranoid.

The singer was not going to keep quiet and quickly broke the silence.

Using his Twitter account where she blasts against the statements.

"While walking around with a 40-degree fever, I see that my sister is doing an interview."

Anyway, what really upset me is that she says my behavior was psychotic.

When she wasn't even there for me 15 years ago.

Why talk about it now? Unless she was saying that to promote her book.

"I hope your book does well, Jamie Lynn." she also wrote.

Besides, "My family broke my life and now they make me look like the crazy one."

Jamie Spears didn't keep quiet either.

"I hate to burst my sister's bubble, but my book is not about her."

Despite this, Britney left another strong message this Friday through her social networks.

She gave Jamie an ironic congratulation for having fallen down.

And she was totally disappointed by her younger sister's actions.

"Congratulations baby. You have just hit a whole new level of low.

I've never been like that with a knife or would think of doing something like that.

Only a scumbag would make up stuff like that about someone."