Just as the Paris Fashion Week collections look a bit like New York Fashion Week on steroids, so, too, do the celebrity ensembles, which step up from being merely eye-catching to inducing whiplash. Case in point: Rihanna. True, the singer is not known for sartorial restraint, nor a pathological addiction to pants. But in Paris she was relentlessly audacious, taking the concept of basic black and cheekily — in some cases, that literally means "through the use of her bum cheeks" — turning it on its ear. Check out the slideshow for our take on Rihanna's entertainingly outré Fashion Week wardrobe.