Seo Changbin

Seo Changbin (Korean: 서창빈, Seo Chang-bin) is a South Korean rapper, songwriter, composer, and record producer. He is the main rapper of the boy band Stray Kids and its producing sub-unit 3Racha.
Biography and career
Born August 11, 1999, in Yongin, Gyeonggi Province, South Korea. As a child, he was into rap, which changed his priorities: he previously dreamed of becoming a president or a scientist, but music became his main passion. He is 167 cm tall.
In 2016, Changbin joined JYP Entertainment through an audition featuring a self-composed rap song. During his trainee period, he teamed up with fellow trainees Bang Chan and Han to form the unit 3Racha. In this group, he used the stage name SpearB (a combination of the Korean word for "spear" and the first letter of his English name, B). Throughout 2017, they posted tracks on SoundCloud.
In late 2017, Changbin participated in the reality show Stray Kids, which focused on the formation of a boy band. In the final episode, it was confirmed that he would be debuting in the group. Stray Kids officially debuted with Changbin on March 25, 2018, with the EP "I Am Not."
Some stages of solo activity:
On May 17, 2020, he released his self-composed song "Streetlight" featuring Bang Chan as part of the SKZ-PLAYER project.
October 23, 2020 — the song Cypher as part of the SKZ-RECORD series.
On September 1, 2023, he released the song "Fly High" as part of the Samsung Galaxy Z Flip 5 advertising campaign.
On October 15, 2024, he appeared on the track "VAY" of ITZY Gold's ninth mini-album, where he was responsible for the lyrics and composition.
On August 1, 2026, a studio version of Changbin's previously unreleased solo song My Name was released as part of Stray Kids' best album SKZ-REPLAY 2026 Pt.1.
In 2025, as part of the 3Racha production team, he was awarded a AAA Award for Best Producer. Since 2026, he has been a global brand ambassador for Autry.

Features of creativity
Changbin's rap is recognizable for its raspy sound and intensity. His voice can range from deep, husky to nasal and high-pitched, creating a rough, gruff quality. He's known for his loud voice, easily audible even without a microphone. However, he demonstrates the ability to sing softly, and some songs feature melodic rap parts.
He previously had the rap tag YAW.
Additional facts
He graduated from Phora High School and studied at Kugje Cyber ​​University, Department of Entertainment.
In 2023, he donated 100 million won through the international organization The Promise to help victims of the earthquake in Turkey and Syria.
He is interested in taekwondo and has a black belt.
As a child, he won first place in the school mathematics olympiad.
Inspired by the work of G-Dragon from the group Big Bang.