'UP UNTIL NOW, it's been about how much print you can wear," said Mary Katrantzou, the London designer known for her wildly inventive and usually wildly hued prints. Ms. Katrantzou was talking about the clashing, pile-it-on, head-to-toe looks popular...

When models and celebrities collide, it can seem like the stars have aligned to create the perfect, genetically-gifted couple. But you can have too much of a good thing. Thanks to "Sex and the City," we have a term for the men of Hollywood who seem to...