Who gets the most spins on your local radio? Who's huge? Who's relevant? And I KNOW it isn't Britney/Gaga/Beyonce, so keep that **** out. For my area it's:
K-pop
Girls' Generation, 2NE1, and miss A for the females, though T-ara have been in heavy rotation because of Roly-Poly.
TVXQ, Big Bang, and Super Junior for the males. BEAST have had a lot of exposure this year, though, since Big Bang have been largely absent from the scene.
American music
I don't know. Korean radio plays a little of every popstar known in the United States, but no one is necessarily "famous" here because the South Korean market is really hard to crack unless a lot of time is focused on it, which, of course, no American popstars have given or are likely ever to give. I guess Beyonce, Gaga, and Avril?