I found a music video the other day that should make you either:
a) legitimately impressed by J-pop, or
b) legitimately unsettled by it. And Japan. And the Japanese culture in general.
Incidentally, it's the opening theme song for the anime series A Certain Scientific Railgun. Buuuuuut.... it's also the trippiest thing I've seen since the anime film Mind Game. Evidently, I should watch more J-pop music videos.