Rihanna has turned up late for the launch of her own River Island fashion collection with the pop superstar surprising one fan in the changing rooms, attending the launch at the Oxford Street store in London. "She came to fittings, we would fit it on models, make sure that it was hanging correctly. We chose the fabrics with her. So it just flowed in a very sort of smooth development process," River Island's Josie Roscop told reporters.At the event, Rihanna insisted there were items to suit all ages, but admitted to being a bit self indulgent and creating a few pieces for herself. "I would wear everything here that's the thing, I designed it so I was being a little bit selfish. I designed everything that I would want to wear, and for the women that I'm with," said the star. "Because I'm with a large group of women who have different sizes, different tastes, different body types, I wanted to design something that everybody could wear. But I'd still wear everything," she added. Report by Jeremy Barnes. Subscribe to The Showbiz 411! http://www.youtube.com/subscription_center?add_user=itn Check out our Rihanna playlist: http://bit.ly/Yt1QrJ More great recent content: Jude Law talks man crushes, #yolo, and Side Effects: http://bit.ly/VzQfsf Jude meets Poppy again: http://bit.ly/101cgz6 Mila Kunis interview about Oz The Great and Powerful: http://bit.ly/Vhqwoh Did Taylor Swift and Ed Sheeran hook up before the Brits? http://bit.ly/12r9oAF Never before seen Jennifer Lawrence interview: http://bit.ly/XnLWQT Jennifer Lawrence interviewed on the red carpet at the Oscars: http://bit.ly/XnM3vJ One Direction celebrate their Brits Global Success Award: http://bit.ly/165SeHK Follow us on Twitter: http://twitter.com/theshowbiz411 Like us on Facebook: http://facebook.com/theshowbiz411 Visit our homepage: http://www.itn.co.uk/Entertainment/TopStories See our Top 20 Most Watched videos: http://www.youtube.com/playlist?list=PLDVdn9aI6gTubtyGn3wRDz7VaHvKyDRfQ See 2012's Most Watched Videos: http://www.youtube.com/playlist?list=PLDVdn9aI6gTtHkekAmD9-P7p5o4BrcpLc Test