Rita Ora says RIP to her music career, and Hello to her acting career as she joins 50 Shades Of Gray!

This is how she do: Rita Ora has been cast in the upcoming adaptation of "50 Shades of Grey."

The 23-year-old singer has booked the role of Mia, the adopted sister of Christian Grey, this according to The Hollywood Reporter. Ora joins a cast which already includes Jamie Dornan (who will be playing Grey), Dakota Johnson (Grey's love interest, Anastasia Steele), and Eloise Mumford, Luke Grimes, and Max Martini.

Ora is saying "R.I.P." to the singer she used to be and turning her focus to the major film project. She released her last album, "Ora," in 2012, and has since made appearances in an episode of "90210" and in the latest "Fast & Furious" movie, "Fast Six."

Hitting theaters on Feb. 13, 2015, the adaptation of E L James' best-selling novel began filming this week. The upcoming movie tells the story of the kinky relationship that forms between Grey and Steele.