I think this would be a perfect video to help prove that J-Pop indeed does sound different than Western pop - or, more specifically, especially American pop, which is the main violator of this copycat formula - because I was trying this in my head, and most songs didn't sound that that at all..... Then again, J-Pop does have its own formula for mass-producing hits, hah.
In the end, yes, pop hits are very easy to create, no matter what country it's from. A few tweaks here and there, but in general, pop music is very....well, uncreative. And meaningless.... And catchy. XP
Thanks for sharing. I got a good laugh out of it.