I'm not sure I understand the "Asian nerd" branding... but I suppose if you listen to American bands and Japanese bands, you can tell that they are quite different (apart from the fact that they sing in different languages). They have very different sounds... and their singers sound VERY different. I mean, how do you compare, say, Naitomea to Nickelback?
You know, if you really want them to come you should drop them a line or something. Go to the band's site and leave a message. You never know - that might be the one deciding factor.