Mariah Carey is opening up about a heartbreaking time in her life. The singer recently revealed that both her mother, Patricia, and her estranged sister, Alison, passed away on the same day in August. In an Instagram post on Sept. 8, Carey shared a video of herself rehearsing ahead of her upcoming shows in China and Brazil. In the caption, she thanked her fans for their support, saying, “It’s been a couple of rough weeks, but I appreciate everyone’s love and support so much.”

Carey confirmed the tragic news to *PEOPLE*, saying, “My heart is broken that I’ve lost my mother…and sadly, my sister lost her life on the same day.” While she had been estranged from Alison, Carey expressed gratitude for spending her mother’s last week with her.

Despite this emotional loss, Carey remains focused on her career. After finishing her Las Vegas residency, she’s preparing for international shows and her Christmas tour, showing her resilience in the face of personal tragedy.