Tokage

Thanks!
Also, I looked up the Seo Taiji dude, and his old Hip Hop group actually were some of the people who popularised rapping in Korean Music. 

oh i forgot, there's these guys as well. there's also ares and schizo but they already veer off hard into that kinda industrial buttrock department

Also yea Seo Taiji's done a bunch of stuff, he's done the rap and boy band stuff (actually some of the tracks they released as a group had a kinda nu-metal vibe already too), one of his albums has more of a '90s alt rock sound to it, there's this nu-metal one, the one right after that was kinda somewhere in between pop punk and nu-metal, after that i've kinda lost track of his stuff but it seemed like he was moving in a more electronic direction