Risshun Setsubun, the parting of winter and spring, was traditionally somthing like a New Year's Eve and Halloween combined. To start the new year off right, Japanese people performed a number of rituals to cleanse the old year of evil and misfortune, and keep it away in the year to come. People even dressed up in costumes to trick the evil spirits into thinking they were someone, or something, else.
This tradition carries on in the hanamachi, or geiko districts, of Kyoto. Once a year, geisha dress up in costumes and entertain their customers as Disney Princesses, Playboy Bunnies, samurai...Whatever they wish.
A feudal princess and samurai.
Remember Mamechika? Here she is as a geiko (purple kimono), enjoying Setsubun with her boombox (^-^)/