Lee Sung Kyung posted a video on February 3 with her and Ahn Hyo Seop’s duet.
They sang the well-known official sound track of Dr. Romantic 2.
It is the OST sang by Gummy titled Your Day for the said drama.
Watch the video here.
She wrote on the caption, “It is Dr. Romantic 2 viewership ratings promise. Thank you for the love and support.”
Meanwhile, the two celebrities made a promise when they guessed in SBS’ Choi Hwa Jung’s Power Time last month.
A listener requested, “If the viewership ratings is over 10%, I think it would be great if the two of you will have a duet and post it on SNS.”