Anybody know who sings this song?

[Jeren of all Trades]

I was watching Mnet countdown on TV and this song always comes up and i always wanted to get it or know who the group is. I am not Korean, so the only part i understand was the english part where the lyrics goes "too far away" and the other english part was "don't go away". The singers were three guys with two singers and one rapper, but it doesn't seem like the rapper was part of the group. One guy had a almost a rice bowl haircut with red glass and the other guy had an emo long hair look. I remember the rapper has this one part where he just sings "what, what wa..wa. what".

Judging from the other songs this looks like i was in 2006-2007 episode.

Thank you for any help with identifying this song for me.

[dictionary]

Maybe you already found it but...

Is this the song, Shout With Your Heart by Monday Kiz? It's the only song I could think of with "too far away...don't go away." I just found out that one of the guys had died.