*They're an all-girl masked pop group who sing about crypto-currencies. They're having their first concert tomorrow and you can only get in if you pony up some crypto coinage.
https://qz.com/1177249/japans-kasotsuka-shojo-the-worlds-first-cryptopop-group-sings-about-bitcoin-and-cryptofraud/
"The group, whose name translates to Virtual Currency Girls, was recently launched by Japanese entertainment company Cinderella Academy, which also manages several other popular groups, to educate the public about the crypto world, in song. Each girl in the group represents a different currency such as bitcoin, ethereum or ripple, which can be identified from their fuzzy masks. It isn’t clear how French maid outfits symbolize cryptocurrency or blockchain technology—but they’re popular costumes in Japan’s anime and cosplay circles...."
https://youtu.be/em4LhTdnHk0