Junsu is the voice behind "Everything of Us" for the 'Moon in the Day' OST.

The music video follows the love between Han Jun Oh (played by Kim Young Dae) and Kang Young Hwa (Pyo Ye Jin) through the generations. "Everything of Us" serves as a romantic theme song for the couple in the ongoing drama 'Moon in the Day'.

Check out Junsu's "Everything of Us" above, and let us know what you think in the comments below.