Rihanna's debut collection for River Island went down a storm at London Fashion Week on Saturday night and now, ELLE's April cover star has unveiled the ad campaign that'll have girls up and down the country clamouring to get their hands on it.

Charlotte Free, Jourdan Dunn, Tao Okamoto, Ataui Deng and Bambi Northwood Blyth star in the Mario Sorrenti-shot images, which reflect the super-sexy 90s vibe of Rihanna's 120-piece strong line.

Click here for your first look at the campaign in full

And did we mention that ELLE is giving you the chance to be the first to buy it?

Five lucky winners will win VIP passes to the London launch of the collection on 5 March, where they'll be able to shop their favourite pieces. Not only that, but they'll be doing it in the presence of Rihanna herself. Enter now and it could be you...

First look: Rihanna for River Island