It comes after 39-year-old sister Jamie Lynn, 30, and mother Lynne, 66, shared messages of support for the singer on their social media.
La pop star is engaged in a legal bid on guardianship, with her father Jamie having managed much of her life and career since 2008, when she suffered a series of mental health crises.
Spears tries to end this check.
In earlier hearings, Spears explained how she was forced to take birth control against her will to prevent her from becoming pregnant with her partner, whom she wants to marry but is also not allowed to do. .
The pop star said she would be happy for co-curator Jodi Montgomery to stay, but that ” my father must be kidnapped today ”.
A new Spears lawyer, Matthew Rosengart, was appointed this week, after criticizing court-appointed man Samuel Ingham for not doing enough to help him end the arrangement.
The case is heard in Los Angeles, California.
Spears has now posted a lengthy Instagram post, along with a photo saying, “Never forget who ignored you when you needed them and who helped you out before you even had to ask. “
His message reads, “There is nothing worse than when the people closest to you who have never come forward for you post about your situation whatever it is and speak righteously for support … there is nothing worse than that !!!!
“How dare the people you love the most to say anything… have they even reached out to even lift me up on TIME !!! ??? How dare you go public that NOW YOU SUPPORT… did you put your hand out when I was drowning ????
“Again… NO… so if you’re reading this and know who you are… and actually have the nerve to say anything about my situation just to publicly save face !!!”
“If you’re going to post something… Please stop with the right approach when you’re so far from fair, it’s not even funny… and have a nice day !!!!!
“PS if you’re reading this today and can figure it out…. I’m sorry because I know what it is… and I send you my love !!!! “
Earlier this week, former Nickelodeon star Jamie Lynn Spears posted on his social media: “Dear Lord, Can we end this bullshit once and for all. Amen. “
Spears also asked this week that his father be charged with abuse of guardianship.
She has received considerable support on social media through la campagne #FreeBritney.
At the height of her fame, Spears was one of the biggest pop stars in the world, famous for her hits such as… Baby One More Time, Oops!… I Did It Again, I’m A Slave 4 U, Toxic , and Womanizer.
Speaking in court in earlier proceedings, #FreeBritney supporter Derrin Stull, 25, said now Spears had had his say publicly and there was “visibility” action had to be taken. taken.
They said, “Well I think Britney is such a light in the world, she’s done so much for society, for music as a person, and it’s really sad that she was allowed to live. in this type of situation for 13 years. So I think it’s really important that everyone supports her.
“Now that there is visibility, there is no more excuse. So it is of the utmost importance that we just make sure that everyone knows that this is happening, that it is happening, and that it is not right. “
Her supportive partner Christina Goswick, 40, said: “As she said [at the previous hearing], I think she’s traumatized.
“She can’t sleep. If you look at her, she looks tired. She just wants her life back and I understand that perfectly. ”