[1] He is best known as a former member of South Korean boy band Treasure formed in 2019 by YG Entertainment, and for competing in the second installment of K-pop Star (2012–2013) where he finished as runner-up.
[5][6] His mother, Jung Mi-young is well known for singing soundtracks in Korean drama Friends and film After the Show Ends (연극이 끝난 뒤).
Five-year-old Bang (Korean age) participated in the opening songs for EBS' television series Bboong bboong-E (방귀대장 뿡뿡이) and the Korean-dub version of the Japanese anime Onegai!
[12] Park Jin-young praised his rhythm while Yang Hyun-suk was intrigued, commending his voice could reach the soul of the audience.
[14] In June 2013, Yang Hyun-suk confirmed Bang had joined his label, thus, both first and second-place winners were now signed under YG Entertainment.
[16] Interactions with Kpop Star alumni, Lee Seung-hoon, resulted in appearances in unreleased clips from the show with Winner, formerly Team A.
[17] Bang appeared on television for the first time in four years with Stray Kids (2017) alongside other fellow trainees under YG Entertainment as its representatives.
[22] In November 2018 Bang participated in reality survival program YG Treasure Box (2018), where 29 trainees competed to secure a spot in the new boy group.
[25] On May 21, 2020, YG Entertainment announced ahead of Treasure's official debut, Bang would release a digital single, later revealed to be entitled "Wayo", on June 5.
[26] The song was accompanied with a music video dedicated to fans who supported him since his appearance on K-pop Star Season 2.
[32] Bang also co-wrote "Darari" on their first extended play, The Second Step: Chapter One, which went viral on TikTok,[33][34][35] and became their most streamed song on Spotify as of September 2024.
On November 8, 2022, YG Entertainment announced that Bang's exclusive contract with their company had been terminated and that he and fellow member Mashiho left the group.