Kim Bo Kyung - Without U ^^

CNBLUE - I'm Sorry
Bigbang - Let Me Hear Your Voice ♥
U-kiss - A Shared Dream
(MY FAVOURITE!!)
BAD - Shin Choi from The Berlin File OST
Sistar 19 - Gone not around any longer
Tonight - Lee Jun Ki
I will promise you -- A.N jell (you're beautiful)
U-Kiss - 0330

P/S : Actually the girl already gone but the boy still love her and sometimes he hallucinating that he was talking/dating with the girl but in reality,the girl is not there anymore(you can see that in the end the vide show that he was alone).Thats why his friends/members were really pissed at him.Thats what i think :)