[Hatredcopter]

In Japan, a band's image is often promoted more heavily than their actual music. Doesn't mean all Japanese bands are bad, though.

As a person who likes a very wide variety of music, and as a person who lives in Japan and hears Japanese music all over the place, I'd have to agree that many Japanese rock bands tend to sound a little overly similar. Once again, that doesn't mean there aren't exceptions.