Calvin Harris's girlfriend strikes a pose

Rita Ora has been flaunting her figure in a very revealing backless dress.

In a sexy Instagram snap posted by the singer, she gives a glimpse of side boob and shows off one of her tattoos while posing in the daring black frock.

Bizarrely she also wears some scary-looking grills in her teeth.

Rita, 22, has clearly got the fashion bug after recently hanging out at Paris Fashion Week with BFF Cara Delevingne.

The songstress has been reminiscing and shared a snap of her and Cara, 21, larking about with designer Giuseppe Zanotti.

‘This was fun. Oh Hey giuseppe zanotti 😉😜,’ Rita captioned the shot.

After their Paris reunion Cara jetted off to Brazil but Rita soon found a new celeb friend to pose with – Katy Perry.

‘Strike a pose baby @katyperry,’ Rita posted with a snap of her and Katy, 28, pouting for the camera.

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