Siwan is the voice behind "Fire" for the 'Tracer' OST.

The music video above features Hwang Dong Ju (played by Siwan), Oh Young (Park Yong Woo), and In Tae Joon (Son Hyun Joo) as they seek to trace money hidden from the tax service. "Fire" is a powerful track that conveys the passionate energy of Hwang Dong Ju.

Check out Siwan's "Fire" above, and let us know what you think in the comments below.