Our favorite celebrity hair chameleon, Rihanna has decides to switch up her strands style once more. Just two weeks after going gray, Rihanna has chopped off her locks and now seems to be sporting her natural black color and curly texture too. Rihanna has a good reason to smile.A London judge has ruled in favor of the pop star in the $5 million lawsuit she brought against Topshop, accusing the British retailer of using a photo of her without her permission on t-shirts that it sold for a profit under the name "Rihanna Tank." Katy Perry loves Rihanna, but she implies in this month's Elle UK that her friend is guilty of terrible judgement!! Perry explained: "There's a lot of dark in this business. I know a lot of people out there with the most detrimental entourages ? they are the root of their demise."