Alison, the estranged sister of singer Mariah Carey is suing the star for $1.25million, claiming her 2020 tell-all memoir The Meaning Of Mariah Carey caused immense emotional distress.

Alison, 59, says that Mariah, 50, lied about her older sibling drugging her and her older brother Morgan abusing her as a child in the book.

The elder Ms Carey – who described herself as ‘profoundly damaged’ – said that the Butterfly singer fabricated the stories ‘to promote sales of her book’ and offered no ‘evidence to substantiate’ her claims, according to legal documents obtained by TMZ.

Mariah recalls her troubled childhood in the chapter ‘Dandelion Tea,’ claiming Alison ‘gave her Valium, tried to pimp her out and threw a cup of boiling hot tea on her causing third-degree burns’ at 12-years-old, according to Alison’s Manhattan Supreme Court summons filed Monday.

Alison, who is representing herself in the case, says the Honey songstress made the untrue claims despite knowing the damage it would cause her, given her personal trauma and health troubles.

She cited trauma stemming from the alleged ‘satanic’ abuse she suffered at the hands of their mother Patricia, which are the subject of another suit Alison Carey filed against her mom last year, per Page Six.

She also said Mariah was aware her sister was suffering from spine and digestive disorders and a traumatic brain injury, short term memory problems and vision problems after being attacked in 2015 in an ‘unsolved home invasion.’

Alison – who is HIV+ has been arrested for soliciting prostitution in the past – also said she was struggling with alcohol abuse after having been sober for ‘a long time.’

With this in mind, Alison says her famous sister maliciously ‘used her status as a public figure to attack her penniless sister, generating sensational headlines describing lurid claims to promote sales of her book.’