Kim Seok-jin, also known professionally as Jin, is a South Korean singer, songwriter, and member of the South Korean boy band BTS. Jin has co-written and released three solo tracks with BTS. He made his official debut as a solo artist in October 2022, with the release of the single "The Astronaut".

Kim Seok-jin was born on December 4, 1992, in Anyang, Gyeonggi Province, South Korea. His family consists of his mother, father, and older brother. In 2007, he went to a study camp in Australia to learn English.

Jin originally wanted to be a journalist but decided to pursue acting after watching Kim Nam-gil in Queen Seondeok. While in junior high school, he was scouted by South Korean K-pop agency SM Entertainment off the street, but rejected the offer at the time. Initially intending to be an actor, Jin attended Konkuk University and graduated with a degree in Film Studies on February 22, 2017. He later enrolled in graduate school at Hanyang Cyber University to pursue studies in areas other than music.

Apart from singing, Jin appeared as a host on multiple South Korean music programs from 2016 to 2018. In 2018, he was awarded the fifth-class Hwagwan Order of Cultural Merit by the President of South Korea along with his bandmates for his contributions to Korean culture. Now he is in military service.