2am were chosen to represent Korea in the official 2010 FIFA World Cup album where a lot of famous singers world wide participated in. 2am's song "number 1" will be released worldwide and has been released first at South Korea.
The song is pretty nice, but im still having a confusion after 4 songs were released at the same time. @_@ so bare with me!
Check out their song:
cr: XDDDD30 @ youtube