On April 21, a music producer involved in the drama’s OST shared, “The first singer the music director thought of when he received the script for ‘Angel Eyes’ months ago was Yoon Gun. His attractive voice suits the drama’s beautiful yet sad story on first love. We believe that fans of the drama will be more teary-eyed with the addition.”
Yoon Gun will sing the theme song for Lee Sang Yoon’s character Park Dong Joo who is a surgeon titled “To Love Fiercely” (working title).
The third OST has been released on April 21 through online music sites.