Jeong Sewoon (Hangul: 정세운; born May 31, 1997) is a South Korean singer under CAM WITH US. He is best known for competing in the second season of Mnet's reality show PRODUCE 101 in 2017. On August 31, 2017, he released his debut extended play, EVER, with JUST U (feat. Sik-K) as the lead single.