Rihanna

Rihanna wearing a black split side maxi dress from her River Island collection, in London, March 2013.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.

Rihanna arrives for the launch party of her River Island collection wearing a cropped t-shirt and double top jeans, both from the collection, London, March 2013.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.

Rihanna wears a custom-made Azzedine Alaia dress to the 2013 Grammy Awards ceremony, February 2013.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.

Rihanna wears a Lanvin Spring Summer 13 jumpsuit while performing during the finale to The Voice, December 2012.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.

Rihanna wearing Nini Nguyen launches 'Nude by Rihanna' at Macy's Westfield Century City, LA, December 2012.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.

Rihanna wears an electric blue Raf Simons coat from his menswear range, and matching Acne trousers and top, as she switches on the christmas lights at Westfield shopping centre, London.

Rihanna. She's one of the biggest stars in the world, and she plays by her own rules - including when it comes to fashion. Dressed by every big name designer you'd care to name - think Gucci, Marc Jacobs, Tom Ford, Balmain - she has fast become a modern style icon.