2017–2018: Produce 101 and Rainz In April 2017, Jang participated in
Mnet's reality competition show to form a temporary
boy group,
Produce 101 Season 2, representing
Oui Entertainment with two other trainees. He was eliminated on episode 5, finishing in 83rd overall. On August 25, 2017, Project Rainz, an association of several agencies including Oui Entertainment, confirmed that Jang would join the debut lineup of
Rainz. The group debuted in October 2017 with their first
extended play Sunshine. After releasing up to four EPs, they eventually disbanded on October 28, 2018.
2019-present: Solo debut and WEi On August 1, 2019, Oui Entertainment announced that Jang would make his debut as a solo artist with a single on August 24. After releasing some teaser photos, on August 24, Jang make his debut with the
single album Feel Good which included two songs. On June 6, 2020, Oui Entertainment confirmed that they would debut their first boy group in the second half of the year and Jang would join the lineup. On July 11, the boy group's name was revealed to be
WEi. The group debuted on October 5 with their first EP,
Identity: First Sight with "Twilight" as the lead single. ==Discography==