Mariah Carey mourns the loss of her mother and sister.

The Grammy-winning megastar confirmed to People that Patricia Carey and Alison Carey died on the same day over the weekend.

“I am heartbroken that I lost my mother this past weekend,” Carey said of Patricia, who was 87. “Sadly, my sister lost her life on the same day, in a tragic turn of events.”

“I feel blessed to have been able to spend the last week with my mother before she passed,” she said. “I appreciate everyone’s love and support and respect for my privacy during this impossible time.”

Carey, 55, is the youngest of three siblings. Patricia and Alison are survived by Carey and her brother, Morgan Carey.

The report did not list causes of death for Patricia and Alison Carey, who was 63 when she died, according to the Times Union.

Patricia was an opera singer and vocal coach who trained at Juilliard.

Carey and her mother sang the Christmas duet “O Come All Ye Faithful” together for the ABC holiday special “Mariah Carey: Merry Christmas to You” in 2010 (see video below).

Mariah’s mother and her father, Alfred Roy Carey, divorced when Carey was 3. The family lived in Huntington, Long Island.

The singer wrote in her 2020 memoir, “The Meaning of Mariah Carey,” that she had a complicated relationship with her mother. Carey also wrote about keeping her distance from Alison and Morgan. The Times Union report said she was estranged from Alison, who lived in Greene County, New York.

“Like so many aspects of my life, my journey with my mother has been full of contradictions and competing realities,” Carey wrote. “It’s never just been black and white — it’s been a whole rainbow of emotions.”

Some of those emotions: “pride, pain, shame, gratitude, jealousy, admiration and disappointment,” she said in the book, which she dedicated to Patricia Carey. “A complicated love connects my heart to my mother’s.”

According to the Times Union, Alison filed a $1.25 million lawsuit against Mariah in New York Supreme Court in 2020, alleging that her sister defamed her in the memoir when she alleged that Alison drugged her when she was 12, gave her third-degree burns and tried to recruit her for sex work.