Rihanna poses at the launch of her new fashion collection in London
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Rihanna turns designer and more arts news

Rihanna launches her new fashion collection, an Anish Kapoor exhibition opens in Istanbul and other arts stories.

Rihanna turns her hand to design launching her new 2013 fashion collection, a major new exhibition of Anish Kapoor's works opens in Istanbul and other stories from the world of art.

Tom Bayly reports.