Yes, I have one novel with a slightly period-ish setting.
Kamiki Ryunosuke, I was drawn because of his voice acting work and also that one drama where he's a villain. Shun Oguri, the Rui, yes.
2ne1 was the one with the element of familiarity, I mean, I believe Dara was the gateway for the popularity of Kpop here. Though aside from 2ne1, SNSD was also quite popular.
Also, May I ask. Why did you choose mistalee as your username?