Alison Carey claims she has suffered emotional distress from allegations Mariah made about her in her 2020 book, The Meaning of Mariah Carey, and she wants at least $1.25 million (£910,000) in compensation.

According to her suit, obtained by TMZ, Mariah's memoir alleges Alison "gave her Valium, tried to pimp her out and threw a cup of boiling hot tea on her causing third-degree burns" when Mariah was 12.

Alison disputes the claims and insists her sister hasn't provided any evidence to support them.

She also points the finger at the 50-year-old superstar for making the allegations despite knowing she suffers from trauma from the alleged abuse she suffered as a child, at the hands of their mother.

Alison says her mum subjected her to satanic rituals and sexual activity at a young age - claims she previously made when she sued the sisters' mother for sexual abuse last year.

Speaking on Oprah Winfrey's Apple TV+ series The Oprah Conversation in September, Mariah said of her relationship with her older sibling: "We don't even really know each other… we didn't grow up together, but we did. Like, they were on their journeys, by the time I got into the world, they had already been damaged, in my opinion. But again, I wasn't there.

"I was dropped into this world and I literally felt like an outsider amongst my own family. They just grew up with the experience of living with a Black father and a white mother together as a family and I was for the most part living with my mother, which they saw as easier, but in reality it was not. They have always thought that my life was easy."