One after the other, the models strutted across the stage to bouncy '80s dance tunes, all showing off designs of the same article of clothing — adult diapers.

Japan has one of the world's most rapidly aging societies, and the fashion show last week proved the country's diaper producers are intent on keeping the elderly clean and dry.

"Diapers are something that people don't want to look at," said Kiyoko Hamada of the Aging Lifestyle Research Center, a leading organizer of the show.