Japan is known for having few taboos, which is why I seem to love it. The only thing that is as strange as Japanese Porn is Japanese metal. Here are a few bands from Japan I haven't been able to stop listening too lately.
Galneryus- Good old Japanese Neo Classical Power Metal, with horrible english tranlation.
Versailles- A newer Visual Kei/ Neo Classical Power Metal band, very talented. Try and just listen first, because they are impossible not to judge upon first seeing the video.