WAITINGROOM LIVE: Hyolyn(효린)_The very first LIVE release of the new song ‘One Step(원 스텝)’

WAITINGROOM LIVE: Hyolyn(효린)_The very first LIVE release of the new song ‘One Step(원 스텝)’ *English subtitles are now available. :D (Please click on ’CC’ button or activate ’Interactive Transcript’ function) Hyolyn’s solo comeback! The very first LIVE release of the new song ‘One Step’