Changbin
South Korean rapper, dancer, singer and songwriter
Seo Chang-bin (Korean: 서창빈; born August 11, 1999), known mononymously as Changbin, is a South Korean rapper, singer, songwriter, and record producer. He is a member of the South Korean boy group Stray Kids, formed by JYP Entertainment in 2017. He is also a member of 3Racha, an in-house production team and sub-unit of Stray Kids.
Besides his contributions to Stray Kids, Changbin participated as a contestant in Show Me the Money 9 and has collaborated with various artists, including Yoon Ji-sung, Thai rappers F.Hero and Milli. Changbin became a full member of the Korea Music Copyright Association in February 2023.
Early life and education
Seo Chang-bin was born on August 11, 1999, in Yongin, South Korea. He graduated from Bora High School and studied at Gukje Cyber University in the Department of Entertainment.
Career
Pre-debut: 3Racha and Stray Kids reality
Changbin joined JYP Entertainment through an audition where he danced to a self-produced song. During his trainee period, Changbin teamed up with fellow JYP trainees Bang Chan and Han to form the underground rap group 3Racha, releasing multiple mixtapes under the pseudonym SpearB, without the company's knowledge. They uploaded their first mixtape, J:/2017/mixtape, consisting of seven tracks, to SoundCloud.
Begin with the source’s own compact description: “Changbin” is south Korean rapper, dancer, singer and songwriter. The dossier treats that line as a proposition to test through Changbin, South and Korean, not as a finished interpretation.
Why this record matters
The phrase “south Korean rapper, dancer, singer and songwriter” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q61100669. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1999, 2017 and 2023.
Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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This entry incorporates text from “Changbin” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.