Last Song 2015

CS NUMBERS 2014

Everlasting 2014

My Baby U (애기야) 2010

Faded Calls Single • 2026

I can't afford to Single • 2026

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

All For You (Inst.) Jeong Eun Ji & Seo In Guk • 60M views

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Love U Seo In Guk • 223K views

Just the Way We Love Jeong Eun Ji & Seo In Guk • 4.9M views

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Out of time Seo In Guk • 957K views

I Can't Live Because Of You (feat. Verbal Jint) Seo In Guk • 1M views

너랑은 뭐든 Seo In Guk • 761K views

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K-Drama Hits Playlist • YouTube Music

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