Jeong Sewoon (Hangul: 정세운) is a South Korean singer under STARSHIP Entertainment. He is best known for competing in the second season of Mnet's reality show PRODUCE 101. He did not make the final cut for the 11-member team in the final episode, ranking 12th overall.

On August 31, 2017, he released his debut extended play, THE 1ST MINI ALBUM PART.1 [EVER], with JUST U (feat. Sik-K) as the lead single. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.