Private Story - 오늘 같은 날 (I dream of you) (Feat. Kim Chan Ho)
Private Story - 그댄 어디쯤 (Where you at) (Feat. Wang Jun Hyup)
Private Story - 봄날의 나 그리고 너 (Our Spring) (Feat. Im Ga Young)
Private Story - 이별일기 (Farewell Diary) (Feat. Yoon Jin Woo)