The first Korean music I heard 10 years ago that didn't suck (thanks to Robin~!) . There's so much different flavor to their music: it's hard to pick one song to really define them. Absolutely in love with Kim Yuna.
I might be the most whitest asian out there except when it comes to music. I actually took an interest in the Korean indie music scene a few years ago and was very surprised to hear some amazing bands.
One of them is The Ratios (더 레이시오스). Fucking A-mazing - I can listen to them all day long. Indieful ROK posted an article the other day about The Ratios: