Czaer, 효연 (HYO) – Retro Romance (House Remix)
Track 01 from Single 'Retro Romance (House Remix)'
효연 (HYO) – Retro Romance
Track 01 from Single 'Retro Romance'
효연 (HYO) – Picture
Track 01 from Single "Picture"
Release Date: 2023.08.22
써니 (SUNNY), 효연 (HYO) – Sky View
Track 01 from Single "노웨이홈 OST"
Release Date: 2023.04.12
효연 (HYO), H4RDY – DEEP (h4rdy Remix)
Track 02 from Single "iScreaM Vol.17 : DEEP Remixes"
Release Date: 2022.09.23
효연 (HYO), 4B – DEEP (4B Remix)
Track 01 from Single "iScreaM Vol.17 : DEEP Remixes"
Release Date: 2022.09.23
효연 (HYO) – Sober (Feat. Ummet Ozcan)
Track 07 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO), 3Lau – Punk Right Now
Track 06 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO) – Badster
Track 05 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO) – DESSERT (Feat. Loopy, 소연((여자)아이들))
Track 04 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO) – Second (Feat. 비비 (BIBI))
Track 03 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO) – Stupid
Track 02 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO) – DEEP
Track 01 from EP "DEEP - The 1st Mini Album"
Release Date: 2022.05.16
효연 (HYO), 3Lau – Punk Right Now
Track 01 from Single "Punk Right Now"
Release Date: 2018.11.13
효연 (HYO), 3Lau – Punk Right Now (English Ver.)
Track 02 from Single "Punk Right Now"
Release Date: 2018.11.13
Raiden, 효연 (HYO) – Think About Me (Feat. Coogie) (IMLAY Remix)
Track 03 from Single "Think About Me - SM STATION"
Release Date: 2020.10.30
Raiden, 효연 (HYO) – Think About Me (Feat. Coogie)
Track 01 from Single "Think About Me - SM STATION"
Release Date: 2020.10.30
Raiden, 효연 (HYO) – Think About Me (Feat. Coogie) (GINJO Remix)
Track 02 from Single "Think About Me - SM STATION"
Release Date: 2020.10.30
효연 (HYO), 3Lau – Punk Right Now (KUURO Remix)
Track 03 from Single "Punk Right Now (Remixes)"
Release Date: 2019.02.23
효연 (HYO) – Sober (Pop Ver.)
Track 03 from Single "Sober"
Release Date: 2018.04.18
효연 (HYO), 3Lau – Punk Right Now (Raiden Remix)
Track 01 from Single "Punk Right Now (Remixes)"
Release Date: 2019.02.23
효연 (HYO) – Badster (English Ver.)
Track 02 from Single "Badster"
Release Date: 2019.07.20
효연 (HYO), 3Lau – Punk Right Now (Madeaux Remix)
Track 02 from Single "Punk Right Now (Remixes)"
Release Date: 2019.02.23
효연 (HYO) – Sober (Feat. Ummet Ozcan) (English Ver.)
Track 02 from Single "Sober"
Release Date: 2018.04.18
효연 (HYO) – Badster
Track 01 from Single "Badster"
Release Date: 2019.07.20
효연 (HYO) – Sober (Feat. Ummet Ozcan)
Track 01 from Single "Sober"
Release Date: 2018.04.18
효연 (HYO) – DESSERT (Feat. Loopy, 소연((여자)아이들))
Track 01 from Single "DESSERT"
Release Date: 2020.07.22
효연 (HYO) – Second (Feat. 비비 (BIBI))
Track 01 from Single "Second"
Release Date: 2021.08.09