^ What, you said I only know Britney Spears, lol? You have absolutely no reason to pull the, "I'm not biased--YOU ARE!! D:" thing with me. I'm extremely open-minded, especially when it comes to music.
I'll like anything that I enjoy listening to, for whatever reason. I listen to Japanese music, from anybody who appeals to me. Not just Ayu or Kuu -- for example, I usually really dislike Namie Amuro and Gackt music, but I have two Gackt songs I love and about half a dozen Namie songs. I also listen to music from Germany. And Greece. And various other places. And yes, even music from the US - from Christina Aguilera and Pink, to matchbox twenty and Savage Garden, to Eminem and ICP (no, I'm not kidding). I have a song in French and a few songs in Korean, even though I don't understand either. So no way do you have the right to try to turn it around on me.
(As a matter of fact, I'm probably less familiar with Britney than most other famous artists from the West, lol. :\)