Throughout July and August, Babymetal will be touring its Five Fox Festival across Japan, though with some very odd rules. Anyone can buy a ticket and attempt to attend the festivals, but you'll flat out be denied entry if you're not dressed according to whatever the theme is that night.
"Each show has its own specific conditions which purchasers must abide by. Please make sure that all of the conditions are met before you make the purchase. In the case that the purchaser does not meet the specific conditions and wins the ticket, we reserve the right to refuse admittance."
Some of the dress codes and requirements are cool, but some are kinda strange, like the "Elementary School & Over 60" nights. Maybe it's just a cultural thing, and it only seems weird to us Americans?