K.Will is the voice behind "Beautiful Moment" for the OST of 'Beauty Inside'!

For the 4th OST, K.Will sings the theme for Seo Do Jae (played by Lee Min Ki), who only has eyes for Han Se Gye (Seo Hyun Jin) despite having face blindness. The MV above reveals their sweet romance that overcomes odds.

Check out K.Will's "Beautiful Moment" MV above!

SEE ALSO: K.Will kicks off Game 1 of the 2018 Korean Series with national anthem performance