Sung Si-kyung Joins OST for JTBC’s New Drama ‘Surely Tomorrow’
Nov 17, 2025
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Sung Si-kyung's OST 'Some Day, Some Hearts' will be pre-released at 6 p.m. on December 4th.
This song was composed and sung by Sung Si-kyung herself, completing the lyrical atmosphere with her unique emotional vocals.
'One Day, One Day, One Heart' was created around the emotional flow of Lee Kyung-do's character played by Park Seo-joon in the drama. The lyricist Shim Hyun-bo completed the lyrics based on the script and delicately depicted the inner side of the character. Sung Si-kyung's light yet lingering tone is expected to increase the immersion of the song and perfectly blend with the atmosphere of the play.
Sung Si-kyung, who has been loved for her unique deep emotional ballad every winter, is expected to prove her presence like a 'song powerhouse' again this time.
Meanwhile, 'Waiting for Gyeong-do' is a real romance between Lee Kyung-do (Park Seo-joon) and Seo Ji-woo (Kwon Ji-an), who broke up after two relationships, reunite as an affair scandal reporter and the wife of the scandal party, respectively. It will premiere at 10:40 p.m. on December 6.
mj.cho@sportschosun.com










