What could be better than shopping Rihanna's new autumn/winter 2013 collection for River Island early? Shopping it early with Rihanna herself, that's what - and that's where ELLE comes in.

On 10 September - two days before the collection hits stores - Ri will be jetting into London for the exclusive launch, and we've bagged tickets for five lucky winners (and a friend each) to be there with her.

You don't need us to tell you that this is an incredible money-can't-buy prize; so secret is the location, we don't even know, and winners will need to be available to collect their wristbands for entry from the River Island London press office on the day.

Not only will you be rubbing shoulders with Rihanna herself on the evening but you can get dibs on all the collection's trophy pieces (we suggest you start compiling your dream list with this edit) and walk away with an exclusive River Island goody bag to boot.

Sound good? For your chance to win, simply email your name and mobile number to elleexperience@elleuk.com by 12pm on Friday, 6 September, adding RIHANNA FOR RIVER ISLAND as the subject line. Terms & conditions apply; we'll pick ten winners at random.

PS Don't feel too sad if you don't manage to get one; simply pick up the October issue of ELLE, on sale today, for your 25% off River Island discount card. So you can shop like a fashion editor regardless. Aren't we good to you?