Lee Se Joon - 모든 날, 모든 순간 (Every day, Every moment)
Lee Se Joon - 그댈 사랑할게요 (I will love you) (OST Taepung's Bride Part.18)
Lee Se Joon - 나눔의 미학 (The Beauty Of Sharing)
Lee Se Joon - 기억해? (Do You Remember?)
Lee Se Joon - 꽃길만 (The Flower Way) (feat. Hope)
Lee Se Joon - YURISANGJA.ac
Lee Se Joon - Melody For You (feat. Yesung, ALi, NC.A)
Lee Se Joon - It's Not Love If It Hurts Too Much