United Kingdom, Aug. 20 -- Ariana DeBose's mother has died.

The West Side Story actress has paid a touching tribute to her "favourite person, biggest fan and toughest critic" after Gina DeBose passed away on Sunday (17.08.25) at the age of 57 following a three-year battle with cancer.

Ariana wrote on Instagram: "At 10:28 am on August 17th my gorgeous, hilarious, outspoken, warrior queen Mother - Gina Michelle DeBose - passed away due to complications with stage 3 ovarian cancer. I couldn't be more proud of her and how she fought this insidious disease over the past 3 years. She was 57 years young.

"She was my favorite person, my biggest fan and toughest critic. My best friend. She was my date to every important moment in my professiona...