Biografi Changbin
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Seo Chang-bin, better known by his stage name Changbin (창빈), is a South Korean rapper, singer, songwriter, and music producer. He was born on August 11, 1999 in Yongin, Gyeonggi Province, South Korea. Sebagai anggota boy group Stray Kids di bawah naungan JYP Entertainment, Changbin memegang peran utama sebagai rapper utama (main rapper), vokalis pendukung (sub-vocalist), dan produser kunci. He is also part of the 3RACHA sub-unit along with Bang Chan and Han Jisung, who are responsible for the group's internal music production. With a height of 167 cm, blood type O, and MBTI type ESTP (formerly ENFP-T), Changbin is known as an energetic, positive, and dedicated figure in his career.
Early life and education
Changbin grew up in a simple family in Yongin, with his parents and an older sister who served as his role model. Since childhood, he showed great interest in music, especially rap and production. At the age of 17, she began her music career by joining JYP Entertainment through auditions where she danced while playing her own songs. He continued his education at Bora high school and then studied at the entertainment Department of Gukje Cyber University. His trainee period lasted for 2 years, during which he often felt lonely because he had to separate from his family, but this motivated his dedication.
Early career and formation of 3RACHA
Pada akhir 2016, Changbin membentuk kru hip-hop underground bernama 3RACHA bersama sesama trainee Bang Chan (CB97) dan Han Jisung (J.One). Using the pseudonym SpearB, they released mixtapes in secret without JYP's knowledge, such as J:/2017/mixtape which consists of seven songs and uploaded to SoundCloud as well as the hiphople forum. The Mixtape received a positive reception among the Korean hip-hop community. On October 12, 2017, Changbin was announced as a participant of the survival show Stray Kids belongs to JYP, where he was introduced as a producer and rapper. He survived and was confirmed to debut alongside eight other trainees, with several of his songs included on his pre-debut EP Mixtape (2018), including “Hellevator” which became an early hit and reached high positions on the Korean charts.
Debut and Development at Stray Kids
Changbin debut resmi dengan Stray Kids pada 25 Maret 2018 melalui showcase debut dan EP I Am Not. Since then, he has actively contributed to the writing of lyrics and compositions for almost all of the group's albums, making Stray Kids a unique “self-producing” group. Albums like Noeasy (2021, first million sales), Oddinary and Maxident (2022), 5-Star (2023), Rock-Star (2023), Hop (2024), Ate (2024), Karma (2025), and mixtape Do It (2025) everything displays a touch of its production. As part of 3RACHA, he was responsible for more than 200 songs, including such global hits as “God's Menu”, “MANIAC”, and “Thunderous”.
In 2020, Changbin took part in competitive rap shows Show Me the Money 9, where he qualified for the first round but was eliminated in the later stages. His appearance went viral thanks to the meme “Jutdae” (meaning “backbone” or strong principle), which was later utilized in a Samsung Galaxy commercial three years later. In February 2023, he and 3RACHA became permanent members of the Korea Music Copyright Association (KOMCA), allowing them to vote and join the board. As of April 2025, Changbin has credited 181 songs on KOMCA, including external collaborations.
Solo activities and collaborations
In addition to Stray Kids, Changbin is active in solo projects. In 2020, he appeared in King of Mask Singer sebagai “Private Second Class”. His collaborations include:
- “You… Like the Wind” untuk Yoon Ji-sung (2019).
- “Mirror Mirror” dengan F.Hero & Milli (2021, memenangkan Best Collaboration di Toty Music Awards Thailand dan The Guitar Mag Awards 2022).
- “Just Breathe” dengan Sky-Hi (2022).
- “Vay " for ITZY (2024, for which he wrote lyrics and composition).
- “R&B Me” untuk Jun. K (2025).
Ia juga merilis single promosi untuk Samsung, seperti “Fly High” (2023) untuk Galaxy Z Flip 5 dan “8th Grader (Respect Your Dreams)” dengan Kim Chang-wan (2024) untuk Galaxy S24. Pada Mei 2024, Changbin debut di Met Gala bersama Stray Kids sebagai tamu Tommy Hilfiger. His estimated net worth in 2025 is us$6-7 million, mostly from music royalties and endorsements.
Personal life and philanthropy
Changbin is an outgoing, honest, and full of energy ESTP type. Ia dekat dengan Yeonjun (TXT), Wooyoung (ATEEZ), dan Tag (Golden Child). In Stray Kids ' dorm, he is responsible for cleaning a large room and often sleeps in Hyunjin's bed. He has a Munchlax doll named Gyu that he always carries with him to sleep. Changbin suka olahraga (fitness), memasak, mendengarkan Kendrick Lamar, dan traveling dengan member. His life motto: "Live with positive thoughts, enjoy life.” Her Ideal type is a girl who can share laughter and joy.
He is also a philanthropist: donated ₩100 million (US$76,600) to the Turkey-Syria earthquake disaster (2023), for which he was named an Honors Club member. On August 11, 2025 (his birthday), he donated another ₩100 million to Samsung Medical Center for children and youth medical expenses, plus emotional support activities. His total donations totaled ₩200 million (US$153,200).
Interesting facts about Changbin
Here's a list of unique and interesting facts about Changbin, compiled from various reliable sources:
|
No. |
Interesting Facts |
Description |
|
1 |
Alias Underground |
Before his debut, he was known as SpearB in 3RACHA, a combination of “Chang” (spear) from his name and “B” from Changbin. |
|
2 |
Meme Viral “Jutdae” |
Quote “Jutdae " from Show Me the Money 9 so a popular meme, it even appeared in the Samsung Galaxy 2023 ad. |
|
3 |
Brief appearance at SMTM |
Appeared at a glance at Show Me the Money 5 before debuting, but only entered full competition in season 9. |
|
4 |
Beloved Doll |
Can't sleep without a Munchlax doll named Gyu; he calls it his “sleeping friend”. |
|
5 |
Emoji Representative |
Di Stray Kids, ia direpresentasikan sebagai “Pabbit” (campuran Pig + Rabbit), mirip Dwaekki (Pigunny) di SKZOO. |
|
7 |
Enjoy The Sport |
Loves fitness; his sports motto: “Don't get injured, enjoy gradual changes.” |
|
8 |
International Collaborations |
Works with Thai rapper F.Hero & Milli; lagu “Mirror Mirror” menang award di Thailand. |
|
9 |
Met Gala Debut |
First appeared at the 2024 Met Gala as a guest of Tommy Hilfiger with Stray Kids. |
|
10 |
Childhood Memories |
At the age of 5, she cried with her brother when her mother briefly went to the trash, for fear of being left behind. |
|
11 |
Role di Dorm |
Often a” victim " of Lee Know's jokes; cleans large rooms and likes to sleep at Hyunjin's place. |
|
12 |
Samsung Promotional Single |
Buat lagu “Fly High” (2023) dan “8th Grader” (2024) untuk kampanye Galaxy; juga bintangi iklan Korea. |
|
13 |
Extra Song Credits |
Selain Stray Kids, kontribusi ke album debut Yoon Ji-sung dan lagu ITZY/Jun. K in 2024-2025. |
|
14 |
MBTI changed |
Awalnya ENFP-T, tapi sejak Maret 2022 jadi ESFP (lebih extraverted dan sensing). |
|
15 |
Funny Nicknames |
Dipanggil Mogi (nyamuk), Jingjingie (cerewet), Teokjaengie (dagu), Dwaekki (babi-kelinci), dan Binnie. |
|
16 |
Vacation Hobbies |
Likes to take a plane with members or traveling groups; hates being alone in the room when on vacation. |
|
17 |
Pre-Debut Contributions |
Tulis dan produksi “Hellevator” untuk EP pra-debut Stray Kids, yang debut di posisi 2 Billboard World Albums. |
|
18 |
Birthday Philanthropy |
Regular donations on birthdays: 2023 for earthquake, 2025 for sick child—total US$153,200. |
|
19 |
Celebrity Friends |
Dekat dengan Yeonjun (TXT), Wooyoung (ATEEZ), dan Tag (Golden Child). |
|
20 |
Alternative Career Potential |
If not an idol, he wants to be a producer, writer, or tattooist. |
Changbin is an example of a multitalented 4th generation idol, with great influence in the K-pop industry through his innovative production and warm personality. It continues to grow, and by 2025, Stray Kids reaches milestones such as Do It No. 1 Billboard 200.


