Pop singer Rihanna is mourning the loss of her beloved grandmother, Clara Dolly Braithwaite, 80, who passed away Saturday following a long battle with cancer.

For months Rihanna tweeted photos of her ailing grandmother whom she affectionately called “grangranDolly”.

Last night the 24-year-old Barbadian singer shared her grief with her immense following on Twitter.

“Goodbye #grangranDOLLY get your beauty rest until I see you,” she tweeted.

Friends and celebrities have expressed their condolences to Rihanna, including Chris Brown’s mother, Joyce Hawkins, who tweeted: “Angel May God be with you and your family in your time of sorrow. Love you Angel.”

Rihanna tweeted her reply: “@mombreezy thank you! Love u mama.”

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  • Photos: Twitter.com