Actors Kim Soo Hyun and Jun Ji Hyun's kiss scene was in the background of the OST by Sung Shi Kyung.
On the episode of SBS Wednesday/Thursday drama "You Who Came from the Stars" broadcast on February 6th, Do Min Joon (played by Kim Soo Hyun)'s filming was cancelled and he waited for Chun Song Yi (played by Jun Ji Hyun) who was left all alone.
On this day, Do Min Joon used supernatural powers to put on all the lights on the neighboring buildings. Do Min Joon said to Chun Song Yi who came to him, "This is the most selfish I can do" and kissed him.
Sung Shi Kyung's voice was used in the background of Do Min Joon and Chun Song Yi's kiss scene. Sung Shi Kyung's soft voice and sweet lyrics was like a scene in a children's story.