소유 (SOYOU), 정기고 – 러브 레시피
Track 01 from Single '원두 프로젝트 Vol.1 - 러브 레시피'
정기고 – Roommates
Track 01 from Single 'Roommates'
정기고 – 사실 너를
Track 04 from Album '닥터슬럼프 OST'
제아, 정기고 – Sunday Latte
Track 07 from Album '오늘도 사랑스럽개 OST'
정기고 – 사실 너를
Track 01 from Single '닥터슬럼프 OST Part.4'
정기고 – Be Your Love
Track 01 from Single "힘쎈여자 강남순 OST Part.2"
Release Date: 2023.10.15
정기고, Housekeepers (하우스키퍼스) – 나쁜 말
Track 01 from Single "Bad words with KozyPop (코지팝 X 정기고, 하우스키퍼스)"
Release Date: 2023.02.20
정기고 – 괜찮은 척
Track 01 from Single "개미가 타고 있어요 OST Part.4"
Release Date: 2022.09.10
정기고 – UH-OH
Track 10 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – NOCTURNE (야상곡)
Track 08 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – GIRLS (Feat. Sik-K)
Track 07 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – LET ME LOVE YOU (DUET. 찬열 OF EXO)
Track 06 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – HEY BAE (Feat. 팔로알토)
Track 05 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고, 찬열 (CHANYEOL) – Let Me Love You
Track 01 from Single "Let Me Love You"
Release Date: 2017.02.23
정기고 – D-Day
Track 01 from Single "내 아이디는 강남미인 OST Part.5"
Release Date: 2018.08.24
정기고 – 일주일 (247) (Feat. Zion.T, Crush, DEAN)
Track 04 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – FANTASY (PROD.GRAY, CRUSH)
Track 03 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – ACROSS THE UNIVERSE
Track 02 from Album "ACROSS THE UNIVERSE"
Release Date: 2017.04.20
정기고 – Waterfalls
Track 01 from Single "Waterfalls"
Release Date: 2011.12.02
정기고 – 생각이 납니다
Track 01 from Single "하백의 신부 2017 OST Part.5"
Release Date: 2017.08.07
정기고 – Hey Bae (Feat. 팔로알토)
Track 01 from Single "Hey Bae"
Release Date: 2016.11.18
정기고 – ‘NOWARNOCRY’ (Feat. Nuck 넋업샨, Paloalto)
Track 02 from EP "'NOWARNOCRY'"
Release Date: 2009.12.09
정기고 – 좋았나봐
Track 01 from Single "New Wave Studio (Vol.2)"
Release Date: 2013.06.21
정기고 – 아까워 (Feat. 민우 Of 보이프렌드)
Track 01 from Single "하이스쿨:러브온 OST Vol.1"
Release Date: 2014.07.25
정기고 – Gravity
Track 01 from Single "Gravity"
Release Date: 2021.01.28
정기고 – 일주일 (247) (Feat. Zion.T, Crush, DEAN)
Track 01 from Single "247"
Release Date: 2015.10.27
정기고 – 너를 원해 (Feat. Beenzino)
Track 01 from Single "Want U"
Release Date: 2014.05.09
창모 (CHANGMO), ASH ISLAND, 정기고 – PAY DAY (Prod. GRAY)
Track 01 from Single "PAY DAY with KozyPop"
Release Date: 2020.02.27
정기고 – 그리고 그려도
Track 01 from Single "7일의 왕비 OST Part.4"
Release Date: 2017.06.22