Ora, 23, will play Christian Grey's adopted younger sister, Mia, who is described in the books as curvaceous, much like Ora. The British native is best known for hit songs like "Hot Right Now," but also made an appearance in Fast & Furious 6.
Fifty Shades of Grey, which recently began shooting in Vancouver, centers on college student Anastasia Steele (Dakota Johnson) who falls for Christian Grey (Jamie Dornan), a mysterious billionaire with an interest in S&M.
Fifty Shades of Grey is slated for release on Feb. 13, 2015. What do you think of the last casting?