Rita Ora Cast as Christian Grey's Sister in Fifty Shades of Grey
updated 12/03/2013 AT 07:30 PM EST
•originally published 12/03/2013 AT 12:00 PM EST
British singer Rita Ora has been cast as Christian Grey's adopted sister, Mia, in the big screen adaptation of the steamy bestseller by E.L. James, reports Variety.
Ora joins stars Jamie Dornan and Dakota Johnson, who play lovers Christian Grey and Anastasia Steele.
Also joining the cast is Oscar winner Marcia Gay Harden, who'll play Grey's adoptive mother, Variety reports.
Eloise Mumford will take on the role of Anastasia's best friend Kate Kavanaugh, Max Martini (cute!) will play Christian's bodyguard.
Ora triumphantly shared the casting news on her Twitter Monday.
"It's official!" she wrote. "I've been cast in @FiftyShades of Grey as Christian's sister Mia. #FiftyShades"