김연아(Kim yeon-a) is the most famous young figure skater in Korea and she's quite well known in other countries as well. If you haven't seen any of her skating videos, here's some of the best.
Be sure to click on each of the links
2007 world championships
2007 Japan Dream on Ice Show
2007 WORLD EX(british)
Here's a WIKIPEDIA page on her.
And this is her fansite :