[koumori]

Oh right..I forgot that because they're Korean they're unable to sing backing vocals well

Their voices aren't stand-out, nor are they any better or worse than usual collab voices. Their background or race shouldn't affect if you shouldn't listen to make it happen or not. Fair enough you don't like Korean Pop music, but this is Namie's song and just saying "koreans are in it, NO WAI AM I LISTENING" comes across really badly.

The song is good by the way, and Namie definitely leads it Don't feel that it'll just sound like an After School song.