겨울이니까
김성중, 유희도
겨울이니까 (Inst.)
김성중, 유희도
첫 겨울이니까 (Inst.)
成始璄, IU
첫 겨울이니까
成始璄, IU
겨울이니까 (Since It's Winter) (Duet With 김창연)
黄致列
첫 겨울이니까（因为是初冬）
SHO丸子, 鹿丸Shika
첫 겨울이니까
够甜o
첫 겨울이니까
成始璄
첫 겨울이니까
피아노 가이(Piano Guy)
추운 겨울이니까
브금강사
First Winter (첫 겨울이니까) (By Sung Si Kyung(성시경), IU(아이유)) (Melody Karaoke Version)
ZZang KARAOKE
First Winter (첫 겨울이니까) (By Sung Si Kyung(성시경), IU(아이유)) (Instrumental Karaoke Version)
ZZang KARAOKE
겨울이니까
Swimming pool, 찬주