Seo Jeong-hoon

Jeong Hoon Seo (; born January 1, 1990), also known as Seo Jeong Hun and by the pseudonym 24, is a South Korean music producer and songwriter. He is affiliated with The Black Label.

Biography Seo Jeong-hoon is also known under the pseudonym 24. He is part of the record label The Black Label, a subsidiary of the South Korean entertainment company YG Entertainment, which manages artists and groups such as Blackpink, BigBang, and Jeon Somi.

Jeong-hoon works as both a music producer and songwriter. In 2023, he was promoted to a full member of the Korea Music Copyright Association.

Seo Jeong-hoon contributed as a songwriter and producer to several tracks on the soundtrack of the film KPop Demon Hunters (2025), including the Academy Award-winning song Golden.

At the Grammy Awards 2026, he made history by delivering an acceptance speech in both English and Korean, thanking his mentor, rapper Teddy Park, as a pioneer of K-pop. He and his songwriting team received the award for Best Song Written for Visual Media, which he accepted on their behalf. This marked the first Grammy win for a K-pop song.

He also received a Golden Globe Award for the song.

Discography (selected) 2017: Taeyang – White Night 2018: Blackpink – Blackpink in Your Area 2020: Blackpink – The Album 2021: Blackpink – Blackpink: The Show 2022: Blackpink – Born Pink 2025: G-Dragon – Übermensch 2025: KPop Demon Hunters Soundtrack

Accolades

Awards and nominations

Listicles + Name of publisher, year listed, name of listicle, and placement Publisher Year Listicle Placement Gold House 2026 Gold100 List