LUKE

On October 10, 2017, Ha Young debuted as a member of TRCNG with the release of their mini album New Generation. In 2020, Ha Young joined the music production team 13 under the producer name LUKE, beginning his career as a producer working on songs for the survival shows Road to Kingdom and Good Girl. On March 27, 2022, Ha Young revealed that his contract with TS Entertainment had ended on February 28, thus also confirming his departure from TRCNG.

On March 24, 2024, LUKE was credited for the first time as a songwriter under the production company MonoTree on the final episode of Build Up : Vocal Boy Group Survivor for the song "Your Season". He is listed as a singer and songwriter on the company's official website.