Looks like those two style are what Kou wants to try for a long time as he constantly dress in those two themes in lots of Shounenki's events before. Tho I wonder if they eventually going to be a one band thing, now it's just a preview or some sort :/ I also suspect that both Eiki and Nao is the support player for each other's band xD
tanuki says every band will disband
tanuki says every bandman has a girlfriend / will get married / is married
tanuki says every bandman has an STD
tanuki says that all foreigners are stinky, have bad manners and shouldn't come to concerts
tanuki says a lot of things and sometimes it's right, sometimes it's partially right and sometimes it's wildly wrong
tbh if you can't read Japanese, I'd suggest not going on tanuki. There's so much slang and so many words that are used specifically for visual kei that translators will just botch it.
moreover you have to understand that more often than not people who are writing these things are people with a grudge taking advantage of how tanuki is anonymous. One person can write over and over pretending to be different people to make it sound more true. There are people who put their own name out there etc by themselves to get people to talk about them or to make others believe something (usually that they are "tsunagari"--have some sort of relationship with the band).
the only reason to go on tanuki is for shits and giggles, not for reliable information