Rita Ora has wowed her followers on Instagram with a stunning make-up free bikini selfie.

The British pop star is seen furrowing her brow and pouting in her poolside snap, in which she wears a pale green bikini and a necklace which says "Rita".

And she also shared a couple of snaps of herself with showbiz pal Alexa Chung and music manager David J Adcock.

She wrote: "Last night was mad real @chungalexa @davidjadcock"

Rita has been in the studio working on her latest music promo - and shared yet another snap of herself in front of a computer monitor as the finishing touches are put to it.