Check Liszt – COSMOS (Vocal by 수정)
Track 01 from Single "Check List #02"
Release Date: 2021.12.27
Check Liszt – Summer List (Vocal by 수정)
Track 01 from Single "Check List #01"
Release Date: 2021.06.28
Be One with Kpop - with Lyric
Track 01 from Single "Check List #02"
Release Date: 2021.12.27
Track 01 from Single "Check List #01"
Release Date: 2021.06.28