Changbin
창빈 · 서창빈 (Seo Chang-bin) · SPEARB (3RACHA)
Seo Chang-bin — Main Rapper · Vocalist · Producer
November 8, 1999 Korean 167 cm 60 kg Type O ESTP Leo
Changbin, born Seo Chang-bin on August 11, 1999, in Yongin, South Korea, is the main rapper and producer of the K-pop boy group Stray Kids under JYP Entertainment. As a founding member of the group's self-producing hip-hop unit 3RACHA alongside Bang Chan and Han, Changbin has co-written and produced a large share of Stray Kids' catalog since the group's March 2018 debut with I Am Not. He joined JYP Entertainment in 2016 after auditioning with a self-composed rap track, quickly establishing himself under the 3RACHA tag SPEARB before the group's official formation. Fans searching for Changbin's profile often look up his birthday, height, weight, blood type, MBTI, and ideal type, along with his ESTP personality, 167 cm height, and August 11 Leo zodiac sign. Musically, Changbin is known for a rap delivery that shifts between deep, gritty growls and sharp, high-energy bursts, making him one of the most distinctive rap vocalists in fourth-generation K-pop, with some fans clocking him among the fastest rappers in the industry. Beyond group promotions, Changbin has built a growing solo footprint, releasing the self-composed Samsung campaign single Fly High in 2023 and his debut solo mixtape Bane in 2024, alongside dozens of KOMCA-registered production and songwriting credits. Off stage, he is known for a playful, sometimes gritty personal style, an affection for horror movies, and a beloved Munchlax plush toy he calls Gyu. As Stray Kids' main rapper, Changbin remains a driving force behind the group's sound, its live-stage energy, and its reputation as one of K-pop's most self-sufficient acts.
Story
Biography
Meet Changbin: Stray Kids’ Main Rapper With the Loudest Voice in the Room
Changbin, born Seo Chang-bin on August 11, 1999, in Yongin, South Korea, is the main rapper and producer of Stray Kids and a founding member of the group’s in-house production unit, 3RACHA. If you’ve ever felt a Stray Kids chorus hit harder because of one specific gritty, powerhouse voice cutting through the mix — that’s Changbin.
The Trainee Who Rapped His Way In
Changbin joined JYP Entertainment in 2016 after auditioning with a self-composed rap song, a detail that still makes STAY smile because it says everything about who he is. He quickly teamed up with Bang Chan and Han to form 3RACHA, taking on the rap tag “SPEARB,” and the trio spent 2017 uploading self-produced tracks online before their official debut. When JYP revealed him for the survival show Stray Kids in October 2017, he was introduced with the roles “Producer” and “Rap” — titles he’s more than earned since.
Building a Voice, Building a Catalog
On March 25, 2018, Changbin debuted as Stray Kids’ main rapper and producer with the mini album I Am Not. Known for a rap delivery that swings between deep, husky growls and sharp, nasal intensity, he’s become one of the most recognizable voices in fourth-generation K-pop — some fans have clocked him as one of the fastest rappers in the industry. As of 2026, Changbin is credited on over 200 songs through the Korea Music Copyright Association (KOMCA). He’s also branched out solo, releasing his self-composed campaign single “Fly High” for Samsung in 2023 and dropping his first personal project, the solo mixtape Bane, in 2024.
Quick Facts Table
Off stage, Changbin is the member who can’t sleep without his Munchlax plush toy “Gyu,” loves horror movies, and has cited BIGBANG’s G-Dragon and Kendrick Lamar as major inspirations. On stage, he’s the main rapper whose voice anchors an entire discography. For STAY, that contrast — soft plush toys off camera, thunderous charisma on it — is exactly what makes Changbin so easy to root for.
Profile
Basic Information
| Stage Name | Changbin |
| Full Birth Name | Seo Chang-bin (서창빈) |
| Date of Birth | August 11, 1999 |
| Birthplace | Yongin, Gyeonggi Province, South Korea |
| Hometown | Yongin, South Korea |
| Nationality | Korean |
| Height | 167 cm (5'6") |
| Weight | 60 kg (132 lbs) |
| Blood Type | O |
| Zodiac Sign | Leo |
| MBTI | ESTP |
| Education | Bora High School |
| Agency | JYP Entertainment |
| Debut | March 25, 2018 (Stray Kids, "I Am Not") |
| Languages | Korean, some English |
| Nicknames | Binnie, Mogi (Mosquito), Jingjingie, Teokjaengie, SPEARB |
| Hobbies | Working out, writing lyrics, collecting sneakers and figures |
| Favorite Color | Black |
| Ideal Type | Someone warm-hearted who makes him laugh |
Membership
Groups & Positions
Stray Kids
JYP Entertainment
Main Rapper Vocalist Producer
March 2018 – Present
The Lineup
Group Members — Stray Kids
Bang Chan
Leader · Producer · Vocalist · Rapper · Dancer
Lee Know
Main Dancer · Vocalist · Rapper
Changbin
Main Rapper · Vocalist · Producer
This Idol
Hyunjin
Main Dancer · Rapper · Vocalist · Visual
Han
Main Rapper · Vocalist · Producer
Felix
Lead Rapper · Lead Dancer · Vocalist
Seungmin
Main Vocalist
I.N
Vocalist · Maknae
Journey
Career Timeline
2016
Joined JYP Entertainment
Joined JYP Entertainment after auditioning with a self-composed rap song.
2016
Formed 3RACHA
Formed the hip-hop unit 3RACHA with Bang Chan and Han, using the rap tag "SPEARB."
2017
Revealed for "Stray Kids"
Officially revealed by JYP Entertainment as a contestant on the survival show "Stray Kids," introduced as Producer and Rap.
2018
Debuted with Stray Kids
Debuted as Stray Kids' main rapper and producer with the mini album "I Am Not" on March 25, 2018.
2023
Released "Fly High"
Released his self-composed track "Fly High" as part of a Samsung Galaxy Z Flip 5 campaign.
2024
Released solo mixtape "Bane"
Released his debut solo mixtape "Bane," his first standalone personal music project.
Music
Discography
🎵
Bane
Solo Mixtape
2024
💜
I Am Not
Mini Album
2018
💜
Clé 1 : Miroh
Mini Album
2019
💜
GO LIVE
Studio Album
2020
💜
NOEASY
Mini Album
2021
💜
Oddinary
Mini Album
2022
💜
MAXIDENT
Mini Album
2022
💜
★★★★★ (5-STAR)
Studio Album
2023
💜
ATE
Mini Album
2024
💜
KARMA
Studio Album
2025
🎧
Social Path
Digital Single
2023
🎧
Chk Chk Boom
Digital Single
2024
🎧
Do It
Digital Single
2025
Recognition
Awards & Achievements
Best New Male Artist
Mnet Asian Music Awards (MAMA)
2018
Album Bonsang – NOEASY
Golden Disc Awards
2022
Top K-Pop Album – 5-STAR
Billboard Music Awards
2023
Album of the Year (Daesang) – KARMA
MAMA Awards
2025
Artist of the Year (Daesang)
Asia Artist Awards
2025
Did You Know?
Trivia & Fun Facts ✨
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Born in Yongin, Gyeonggi Province, South Korea, and has an older sister.
★
Joined JYP Entertainment in 2016 after auditioning with a self-composed rap track.
★
Formed the hip-hop unit 3RACHA with Bang Chan and Han shortly after joining, using the tag "SPEARB."
★
Uploaded self-produced tracks with 3RACHA on SoundCloud throughout 2017, before Stray Kids' official debut.
★
Briefly appeared on the rap competition show "Show Me the Money 5" before Stray Kids' debut.
★
Graduated from Bora High School.
★
His parents were reportedly thrilled when he was accepted into JYP Entertainment, comparing it to getting into a top university.
★
Can't sleep without his Munchlax plush toy, which he's nicknamed "Gyu."
★
Known for a loud, projecting voice that can be heard even without a microphone.
★
His rap delivery can shift from a deep, husky growl to a sharp, nasal tone, giving his verses a distinctive texture.
★
Cites BIGBANG's G-Dragon and rapper Kendrick Lamar as major musical influences.
★
Enjoys horror movies and describes himself as drawn to "dark" aesthetics.
★
Likes collecting figures and other small items.
★
Released the self-composed track "Fly High" as part of a Samsung Galaxy campaign in 2023.
★
Released the remake track "8th Grader (Respect Your Dreams)" as part of a Samsung Galaxy S24 campaign in 2024.
★
Wrote and composed for ITZY's track "VAY" from their 2024 mini album GOLD.
★
Released his debut solo mixtape, "Bane," in 2024, his first standalone personal project.
★
Is credited on more than 200 songs through the Korea Music Copyright Association (KOMCA) as of 2026.
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His nicknames from members include Mogi (mosquito), Jingjingie, Teokjaengie, and Binnie.
★
Said he's good at ball sports in general, on top of his music skills.
★
His personal motto is "Let's live with a positive mind, enjoy the life."
★
Considered becoming a producer, writer, or even a tattoo artist if he hadn't debuted as an idol.
★
Was one of the earlier trainees to join the eventual Stray Kids lineup, alongside Hyunjin, joining around 2016.
★
Has said he wanted to become a singer after seeing the crowd's reaction to his rapping and dancing at a school festival.
★
Fans have nicknamed him "Pabbit," a mashup of pig and rabbit, as his representative animal.
The Fandom
Fan Club & Fan Name 💜
Official Fan Name
STAY
STAY is the official fandom name of Stray Kids, revealed by the members on August 1, 2018. The name comes from the word "Stray" with the letter "r" removed, symbolizing "reason" — the idea that fans are the reason the group can keep chasing their dream. August 1 is celebrated every year as "STAY Weeek," when the members release special surprise tracks and content for their supporters.
Official Fan Color
No single official fandom color
Stray Kids has never confirmed one official fandom color. Instead, the group's visual identity centers on the silver-and-red rotating compass featured on their lightstick, tying back to the group's recurring "finding your own path" storyline.
Official Light Stick
Nachimbong (나침봉)
The Nachimbong blends the Korean words "nachimban" (compass) and "bong" (stick). It has a white handle topped with a rotating silver-and-red compass that reads "You make Stray Kids stay," a message to STAY. First released in November 2019 and updated with an OLED, customizable Version 2 in June 2023, it connects to Bluetooth for synced light shows during concerts.
Fan Community Platform
FANS (formerly Bubble)
Stray Kids communicate with STAY through JYP Entertainment's official "FANS" app, a paid one-on-one messaging platform that replaced Bubble Community in January 2024, alongside the group's official social media and YouTube channels.
Stay Connected
Social Media
Photos
Gallery 📷
