숙희 – 그럭저럭
Track 01 from Single "웹드라마 청춘 레시피 OST Part.2"
Release Date: 2021.03.21
숙희 – 스쳐지나가
Track 01 from Single "사랑은 노래를 타고 OST Part.4"
Release Date: 2014.03.13
숙희 – 그대 이름 세글자
Track 01 from Single "위험한 약속 OST Part.2"
Release Date: 2020.04.11
숙희 – 얼굴 보고 얘기하자
Track 04 from EP "이별병"
Release Date: 2014.10.14
숙희 – 한잔했어요 (Feat. 신지현 Of 벨로체)
Track 03 from EP "이별병"
Release Date: 2014.10.14
숙희 – 꿈이 있어요
Track 01 from Single "파랑새의 집 OST Part.1"
Release Date: 2015.03.07
숙희 – 어제까지 (Feat. 길구봉구)
Track 02 from EP "이별병"
Release Date: 2014.10.14
숙희 – 잠 못 드는 밤
Track 01 from EP "이별병"
Release Date: 2014.10.14
숙희 – Missing You
Track 05 from EP "The First Experience"
Release Date: 2010.06.03
숙희 – 사랑보다 아름다운 말 (Feat. MC몽)
Track 04 from EP "The First Experience"
Release Date: 2010.06.03
숙희 – Miracle
Track 03 from EP "The First Experience"
Release Date: 2010.06.03
숙희 – 가슴아 안돼
Track 01 from Single "가슴아 안돼"
Release Date: 2010.10.28
숙희 – 라라라
Track 02 from EP "The First Experience"
Release Date: 2010.06.03
숙희 – One Love (Feat. 가희 Of 애프터스쿨)
Track 01 from EP "The First Experience"
Release Date: 2010.06.03
숙희 – 그게 나란 걸
Track 01 from Single "용왕님 보우하사 OST Part.4"
Release Date: 2019.02.21
숙희 – 겨울이 오면 (Feat. 성태 Of 포스트맨)
Track 05 from EP "Cry Music Play"
Release Date: 2016.03.16
숙희 – 별이 수놓은 밤
Track 04 from EP "Cry Music Play"
Release Date: 2016.03.16
숙희 – 음악을 틀었어
Track 03 from EP "Cry Music Play"
Release Date: 2016.03.16
숙희 – 겨울이 오면 (Feat. 성태 of 포스트맨)
Track 01 from Single "겨울이 오면"
Release Date: 2015.12.16
숙희 – 이를테면
Track 02 from EP "Cry Music Play"
Release Date: 2016.03.16
숙희 – Love U
Track 01 from EP "Cry Music Play"
Release Date: 2016.03.16
숙희 – 이럴거면 헤어져
Track 01 from Single "이럴거면 헤어져"
Release Date: 2021.05.26
숙희 – 가질 수 없는 너
Track 01 from Single "여자의 비밀 OST Part.8"
Release Date: 2016.09.12
숙희 – 벽
Track 01 from Single "하나뿐인 내편 OST Part.21"
Release Date: 2018.12.30
숙희 – 별이 수놓은 밤
Track 01 from Single "별이 수놓은 밤"
Release Date: 2015.09.15
숙희 – Missing You
Track 01 from Single "Missing You"
Release Date: 2009.10.21
유이 (애프터스쿨), 전진, 숙희 – 그 남자 그 여자의 사정
Track 01 from Single "인사(人事): 연·애·별(緣·愛·別)"
Release Date: 2009.09.24