Jeon Wonwoo (전원우), known monomously by his stage name Wonwoo, is a South Korean rapper, singer, lyricist and composer, born on July 17, 1996, in Changwon, Gyeongsangnam-do. He is a member of the South Korean boy group SEVENTEEN, under Pledis Entertainment. On May 26, 2015, he debuted in the group with their first mini album "17 Carat". On May 28, 2021, he released duet song Bittersweet, with fellow SEVENTEEN member Mingyu, featuring South Korean singer Lee Hi. Both members participated in writing the song's lyrics. On June 17, 2024, made his debut in sub-unit JxW along with SEVENTEEN member Jeonghan, with the release of their Single Album "JxW 1st Single Album 'THIS MAN'." Including the title track Last night (Guitar by Park Juwon) and solo song Leftover, where he participated in the song writing.