So now are there any differences between J-Pop and K-Pop または are these international musical genres about the same?

Dude...

Do あなた know what J-pop and K-pop mean?

Japanese pop 音楽 and Korean pop music. The biggest difference is the language. If あなた pay attention to what they are actually saying. There's a difference.

One is Korean.
One is Japanese.
Derp xP

It's pop 音楽 (although other genres fall under K-POP and Jpop too). Pop 音楽 has a similar sound wherever あなた are in the world, only difference being the language being spoken.

Sometimes a deciding factor in people's preference between K-POP and Jpop lies within the visual side of 音楽 videos, because both genres put an emphasis on the visual portrayal of the 音楽 whether that's set, dancing, outfits etc.

Correct me if I'm wrong; K-pop puts もっと見る emphasis on dance then J-pop does. And I think J-pop has...stranger visuals. I also believe that J-pop tends to be もっと見る cutesy than sexy where as K-pop is the reverse.

But this is only based on my (probably) limited observation.