A style showdown between Whitney Port and Rihanna is clash of fashion titans, albeit very different ones. We love these two. But there can be only one winner. Amazingly, both The City star and fashion designer and the pop star manage to make their looks work well with wildly printed, black and white harem pants. MC Hammer would be proud … if he could afford an Internet connection and read this. Just kidding. Probably. Dude was in serious financial trouble for a time. Anyway, who looks better? Check out the Whitney and Rihanna pics and vote!