Following the news from earlier today that production is currently under way in Vancouver, Fifty Shades of Grey has added yet another cast member with Rita Ora signing on.

The singer-actress is playing Mia Grey, the adopted sister of Jamie Dornan's Christian Grey. Dakota Johnson stars as Anastasia Steele, the college student who begins a steamy affair with the 27-year-old billionaire Christian Grey. The supporting cast includes Jennifer Ehle as Anastasia's mother Carla, Luke Grimes as Christian's brother Elliot, Victor Rasuk as Anastasia's friend Jose, Eloise Mumford as Anastasia's roommate Kate and Max Martini as Christian's bodyguard Jason Taylor.

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Sam Taylor-Johnson is directing from a script by Kelly Marcel, Patrick Marber and Mark Bomback, which was adapted from the E.L. James novel.

Rita Ora had an uncredited role as a racer in this summer's Fast & Furious 6, and she also appeared in an episode of 90210 earlier this year.