From IU to Park Hyung-sik, Bae Suzy: 6 popular K-drama stars who sang for their own OSTs

Some K-drama stars not only shine on screen but also lend their voices to unforgettable OSTs. From IU’s haunting vocals in Hotel Del Luna to Park Hyung-sik’s sweet track in Strong Woman Do Bong-soon, here are 6 popular actors who showcased their dual talent in