Byul by Kim Ah Joong (OST 200 Pounds Beauty)
It's extracted from the movie '200 Pounds Beauty'. The main actress sings with her real voice.
Enjoy!
PS: Byul's MP3 direct link
http://www.esnips.com/nsdoc/8e000961-889d-40ac-bb41-01573e55439d/?id=1183252519557
