It's not over 'til it's over, they say, and�Kim Soo Hyun�is here to shows that the buzz around�his latest drama doesn't have to go away anytime soon with the release of his special song.�

The actor is providing an early White Day present with his sweet voice in the song "Promise" for the 'You Who Came From the Stars' special OST.�"Promise" is the song that he sang during the 19th episode. It expresses a man's unchanging feelings for the woman he loves, much like Do Min Jun (Kim Soo Hyun)'s promise to Chun Song Yi (Jun Ji Hyun).

SEE ALSO: Kim Soo Hyun sings 'In Front of Your House' for his drama 'You Who Came From the Stars' OST

Kim Soo Hyun will also kick off his fan meeting tour in Seoul on the 16th and meet fans in a total of nine cities in seven countries. In the meantime, feed your withdrawal symptoms with the song above!