Rihanna wants you to dress like a genderless Japanese goth. And now you probably will.

One in a series of reports on the clothes that had a moment at New York Fashion Week.NEW YORK -- The pop star Rihanna introduced ready-to-wear to her collaboration with Puma -- another entertainer who has taken on the mantle of designer. Sigh. Heavy sigh. (Still awaiting a Seventh Avenue star to announce: Look at me! I'm a rock star!)