박원석 – 이번이 마지막 (Feat. 이지혜)
Track 02 from EP "Viruth"
Release Date: 2012.04.06
박원석 – 이하니 (So Do I)
Track 02 from EP "약"
Release Date: 2015.05.04
박원석 – 올해 몇살이지 (Feat. 남봉근 밴드)
Track 01 from EP "약"
Release Date: 2015.05.04
박원석 – Hippy Birth Day
Track 01 from EP "Acoustic Blue"
Release Date: 2016.05.10
박원석 – Wish I Was (Feat. 이지혜)
Track 01 from EP "Viruth"
Release Date: 2012.04.06