Watch the live videos and look at the crowd. They all do whatever the dancers tell them to. During "Headbangeeeeerrrrr!!!!!" they jump on command, then spend two full minutes on their knees bowing as Queen Su (as she is known in the fandom) gives the "death stare" until satisfied.

Yes, the impossibly cute and sweet girly-girl from the "Monochrome" audience interaction can turn on a stage presence most musicians can only dream of. I've never seen that kind of contrast.

Their first major gig outside of Asia was as a nearly unknown group in front of 50,000 people at a festival in the UK known for rampant hooliganism. There were contingency plans to hustle the girls off stage if the crowd didn't like them and started throwing things.

By the end of their set, she’s repeatedly yelling “We are…?” and a mob of metalheads who’d never heard of them before are screaming back “Babymetal!” They walked off to chants of “We want more!” She was 16 years old. One of the most remarkable things I’ve ever seen.