니콜 – Mysterious
Track 01 from Single "Mysterious"
Release Date: 2023.03.09
니콜 – YOU.F.O
Track 01 from Single "YOU.F.O"
Release Date: 2022.07.27
니콜 – LOVE
Track 05 from EP "First Romance"
Release Date: 2014.11.19
니콜 – 조커 (Joker) (Feat. Ricky)
Track 04 from EP "First Romance"
Release Date: 2014.11.19
니콜 – 7-2=오해 (Feat. 동우 Of Infinite)
Track 03 from EP "First Romance"
Release Date: 2014.11.19
니콜 – MAMA
Track 02 from EP "First Romance"
Release Date: 2014.11.19
니콜 – Innocent? (Feat. 김보아 Of Spica)
Track 01 from EP "First Romance"
Release Date: 2014.11.19
니콜 – Promise
Track 01 from Single "Promise"
Release Date: 2019.08.02
니콜 – 시너지 (SYNERGY)
Track 01 from Single "엑소스 히어로즈 OST Part.2"
Release Date: 2020.10.06
강균성 (노을), 니콜 – 해피 엔드 (Happy And)
Track 01 from Single "해피 엔드"
Release Date: 2009.04.10
니콜 – Lost (Feat. 정진운 Of 2AM)
Track 03 from Album "KARA SoloCollection"
Release Date: 2012.11.30
효린, 전효성, 현아, 니콜, 나나 (애프터스쿨) – 이사람
Track 01 from Single "2012 SBS 가요대전 The Color Of K-Pop 'Dazzling Red'"
Release Date: 2012.12.27