Sung Si-kyung

Sung Si Kyung X Surely Tomorrow (Original Television Soundtrack)

Single • 2025

Shiawase no Katachi

EP • 2025

Go for a Walk

Single • 2024

Alley

Single • 2023

Konnani Kimi wo

EP • 2023

Even for a moment (잠시라도 우리)

Single • 2023

Need you (with Sung Si Kyung)

Single • 2023

Naul <Ballad Pop City> (나얼 <Ballad Pop City>)

Single • 2022

For A Long Time (CURTAIN CALL OST Part.5) (오랫동안 (커튼콜 OST Part.5))

Single • 2022

You don't have to say anything (I already know)

Single • 2022

Snowdrop (Original Television Soundtrack, Pt. 1)

Single • 2021

You Can Change My Life-SELECTION-

EP • 2021

Tale of the Nine Tailed, Part 5 (Original Sound Track)

Single • 2020

And we go

Single • 2020

You Can Change My Life -Aigaumareta- / Ashita

Single • 2020

First Winter (첫 겨울이니까)

Single • 2019

Hachimitsu

Single • 2019

The Crowned Clown Pt. 6 (Original Television Soundtrack)

Single • 2019

One more time, One more chance / Tsuioku

Single • 2018

Shiawasenara Sobaniaru

Single • 2018

eternally(영원히)

Single • 2018

Holding On To You (나의 밤 나의 너)

Single • 2017

The Legend of The Blue Sea(푸른 바다의 전설) OST Part.5

Single • 2016

Andromeda (강승원 1집 만들기 프로젝트 Part 4 : 안드로메다)

Single • 2016

구르미 그린 달빛 (KBS2 월화드라마) OST - Part.5

Single • 2016

My Love From the Star Part 7 (별에서 온 그대 OST Part.7)

Single • 2014

응답하라 1994 OST Part 2 Reply 1994 OST Part 2

Single • 2013

천일의 약속 OST Part.3

Single • 2011

First Time (처음)

Single • 2011

It's you (그대네요)

Single • 2010

Rhapsody Pt. 1

Single • 2008

Farewell Once Again (한번 더 이별)

EP • 2007