Last Song 2015

CS NUMBERS 2014

Everlasting 2014

My Baby U (애기야) 2010

pray (Webtoon 'The Princess’s Guide to a Perfect Life' Original Soundtrack) Single • 2025

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

Fallen Single • 2022

Seo Single • 2022

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

LOVE&LOVE Single • 2022

All For You (Inst.) Jeong Eun Ji & Seo In Guk • 59M views

[MV] 정은지 x 서인국 커플 (Couple) - Special single Official Music Video Seo In Guk • 2.7M views

Just the Way We Love Jeong Eun Ji & Seo In Guk • 4.8M views

Love U Seo In Guk • 218K views

부른다 메달 Seo In Guk • 1.2M views

Out of time Seo In Guk • 903K views

I Can't Live Because Of You (feat. Verbal Jint) Seo In Guk • 987K views

Finding Myself Seo In Guk • 3M views

너랑은 뭐든 Seo In Guk • 723K views

Hirune (Nap) Seo In Guk • 263K 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

Love Songs for Confession Playlist • YouTube Music

Stylish & Upbeat Korean Ballad Playlist • YouTube Music

Legendary Korean Music Remake Playlist • YouTube Music

K-Drama Hits Playlist • YouTube Music

Romantic Driving Korean Music Playlist • YouTube Music

Christmas Theme Korean Music Playlist • YouTube Music

[ M/V ] Playlist • Seo In Guk • 173K views

노래부르기 [ SINGING SONG ] Playlist • Seo In Guk • 29K views

Jo Hyun Ah (Urban Zakapa) 6.79K subscribers

Park Hyungsik 95.7K monthly audience

HWANG MIN HYUN 375K monthly audience

YOOK SUNGJAE (BTOB) 591K monthly audience

Jeong Se-woon 1.42M monthly audience

Vromance 393K monthly audience

JO KWON 3.33M monthly audience

Park Boram 11.4K subscribers

Park Bo-Gum 64.7K subscribers

Lee Seung Gi 2.01M monthly audience