Ahn Hyo Seop and Lee Sung Kyung sing duet of “Doctor Romantic 2” OST

Lee Sung Kyung took to Instagram to upload a duet with Ahn Hyo Seop of Gummy’s OST song for “Doctor Romantic 2.” This is to commemorate the ratings that the show surpassing 20%.

View this post on Instagram

낭만닥터김사부2 공약 ◡̈ 많은 사랑과 응원 감사드립니다??

A post shared by 이성경 (@heybiblee) on Feb 2, 2020 at 7:08pm PST