What's The Name Of The Song In This Video?

Ok so i was watching this movie and at 6:11 they play a song
(its in korean) but i know there is an english /spanish version out
there
i have heard it before but cant remember who sings it. I don't like it

it just has been bugging me and i cant seem to remember. DX

Song at 6:11

http://www.youtube.com/watch?v=maDmxES2ZoY