K Pop seems to be really booming in the West. Since Demon Hunters won that Oscar, K Pop has been all over British media outlets and I've had the opportunity to listen quite a bit of it. It is Western girl/boy band music. Korea has added nothing new to the sound of the music (other than the language in which it is sung). I suspect a 'blind listening' of K-/J-/Western pop would render them indistinguishable from one another. It's just boy/girl band pop.