Yang Hee Eun - 그리운 친구에게 (Longing for a friend)
Yang Hee Eun - 사랑 그 쓸쓸함에 대하여 (Love, on its Solitude)
Yang Hee Eun - 모든 날, 모든 순간 (Every day, Every Moment)
Yang Hee Eun - 4월 (April) (With Kang Seung Won)
Yang Hee Eun - Goodbye Sadness (With bk! of Astro Bits)
Yang Hee Eun - 산책 (Walk) (With Lee Sang Soon)
