[1] He passed the first round of auditions with a performance of his original song titled "Mom, Wait a Minute" (엄마 잠깐만).

One of the judges in the show, founder and former JYP Entertainment CEO Park Jin-young, praised the musical form of the song and likened him to Akdong Musician, who were the winners of the second season of K-pop Star.

[9] Jeong debuted as a solo artist on August 31, with his first EP titled Ever,[A] which peaked at number two on the Gaon Album Chart after selling 23,438 copies within its first week.

[10] The EP contain six songs, including his original compositions "Miracle" and "Never Mind", as well as the title track "Just U", featuring rapper Sik-K.[11][12] "Just U" peaked at number eight and had more than 59,790 digital downloads within the first week of sales.

[27] On September 8, 2024, it was announced that Jeong will leave Starship Entertainment after ten years, deciding not to renew his contract.

[28] On October 31, 2024, it was exclusively reported that Jeong has joined the label CAM with us (씨에이엠위더스), home to artists including Davichi, Silica Gel, and more.