Ji Sung surprised some people with his singing ability in the track "Heights of Windstorm" for 'Secrets' OST!

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"Heights of Windstorm" is the final track of the 'Secrets' OST series and is a ballad song which is composed, written, and arranged by Gehmee, Kim Se Jin, and Lee Kun Young. The song expresses Min Hyuk (Ji Sung)'s love for Yoo Jung (Hwang Jung Eum).

Listen to Ji Sung's soothing voice above as you wait for the finale of 'Secrets' this week!