The elder brother of Mariah Carey, Morgan Carey is suing the star for defamation and emotional distress.
Morgan said the star’s book, which is her recent memoir tiled, The Meaning Of Mariah Carey, falsely suggests he was violent after seeking unspecified damages.
According to his legal case, he has suffered “extreme mental anguish” and “serious damage to his reputation”
Meanwhile, the star’s sister has also joined the brother to sue their sister. The papers have been filed a month after she sued her for $1.25m (£900,000) over the memoir.
Alison Carey said passages claiming that she gave Valium to 12-year-old Mariah, tried to pimp her out and threw boiling tea on her were “outrageous” and meant to “humiliate and embarrass” her, BBC reports.
So far, she has denied the claims, saying the singer had “presented no evidence to substantiate these serious allegations”.
