Last Song 2015

CS NUMBERS (CS NUMBERS) 2014

Everlasting 2014

My Baby U (애기야) 2010

IRO EP • 2025

Couple - Special Single (커플 (Couple) - Special Single) Single • 2025

SIGnature EP • 2024

2024 SINGLE ALBUM [SEO IN GUK] Single • 2024

이재, 곧 죽습니다 OST Part 2 Single • 2023

THE X EP • 2023

Fallen Single • 2022

Seo Single • 2022

Minamdang (Original Television Soundtrack, Pt. 6) Single • 2022

LOVE&LOVE Single • 2022

Hirune (Nap) Seo In Guk • 185K views

All For You (instrumental) Jeong Eun Ji & Seo In Guk • 57M views

Couple Jeong Eun Ji & Seo In Guk • 2.2M views

우리 사랑 이대로 (Just the way we love) Jeong Eun Ji & Seo In Guk • 4.8M views

Love U Seo In Guk • 213K views

부른다 메달 Seo In Guk • 1.2M views

Out of time Seo In Guk • 860K views

너랑은 뭐든 Seo In Guk • 681K views

Finding Myself Seo In Guk • 2.9M views

I Can't Live Because Of You (feat. Verbal Jint) Seo In Guk • 966K views

Sweet Korean Love Songs Playlist • YouTube Music

Bright Korean Ballad Playlist • YouTube Music

K-Soundtrack Hits 2024 Playlist • YouTube Music

Beautiful Korean Duet Playlist • YouTube Music

Stylish & Upbeat Korean Ballad Playlist • YouTube Music

Love Songs for Confession Playlist • YouTube Music

Legendary Korean Music Remake Playlist • YouTube Music

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Christmas Theme Korean Music Playlist • YouTube Music

감성 ON Playlist • YouTube Music

[ M/V ] Playlist • Seo In Guk • 163K views

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Lee Hong Gi 1.63M monthly audience

Yoo Hwe-seung 1.53M monthly audience

Vromance 52.2K subscribers

2am 613K monthly audience

Park Boram 11.2K subscribers

Hong Dae Kwang 14.6K subscribers

Kim Tae Woo 6.44K subscribers

HA SUNG WOON 54.6K subscribers

SEO EUNKWANG 8K subscribers

Kim Jae-joong 342K monthly audience