Changbin

Seo Chang-bin, known mononymously as Changbin, is a South Korean rapper, singer, songwriter, and record producer. He is best known as a member and main rapper of the South Korean boy group Stray Kids, formed by JYP Entertainment in 2017. Alongside bandmates Bang Chan and Han, he is also part of 3RACHA, an in-house songwriting and production trio responsible for creating much of Stray Kids' discography.

Prior to his official debut, Changbin released self-produced tracks on SoundCloud under the pseudonym SPEARB as part of 3RACHA. He competed in the 2017 Mnet survival reality show Stray Kids, which finalized the line-up for the group. He officially debuted with Stray Kids in March 2018 with the release of the extended play I am NOT. Over the course of his career, he has written and produced numerous tracks for the group, becoming a full member of the Korea Music Copyright Association in 2023.

Beyond his work with Stray Kids, Changbin competed on the hip-hop contest television show Show Me the Money 9 in 2020. He has collaborated with various international and domestic artists, including Thai musical artists F.Hero and Milli on the single Just Breathe, and featured on tracks for other artists such as ITZY. In addition to music, he has engaged in commercial endorsements and fashion partnerships, including representing global lifestyle brands.

Changbin continues to be active as a recording artist, songwriter, and producer, participating in Stray Kids' global concert tours, album releases, and promotional activities.