'''Choi Yeon-jun''' (최연준, {{lahir mati||13|9|1999}}) adalah [[penyanyi pria]] dan [[penari]] asal [[Korea Selatan]] dari grup vokal pria, [[Tomorrow X Together|TXT]] adalah anggota pertama dari peringkat usia dan anggota pertama yang diungkapkan.<ref>{{cite web|url=https://metro.co.uk/2019/01/10/yeonjun-announced-first-member-big-hits-new-band-txt-8330981/|title=Yeonjun is announced as first member of BigHit’s new band TXT|accessdate=2019-01-11|work=|language=en|archive-date=2020-12-20|archive-url=https://web.archive.org/web/20201220074856/https://metro.co.uk/2019/01/10/yeonjun-announced-first-member-big-hits-new-band-txt-8330981/|dead-url=no}}</ref> Pada tanggal 4 Maret 2019, ia melakukan debut Korea-nya dengan mini album "[[The Dream Chapter: Star]]".<ref>{{Cite web|url=https://entertain.naver.com/read?oid=057&aid=0001324678|title=투모로우바이투게더, 3월4일 Mnet ‘데뷔 셀러브레이션 쇼’로 데뷔(공식입장)|accessdate=2019-02-07|work=MBN|language=ko|archive-date=2019-02-09|archive-url=https://web.archive.org/web/20190209124507/https://entertain.naver.com/read?oid=057&aid=0001324678|dead-url=no}}</ref> Pada tanggal 15 Januari 2020, melalui single debut [[Jepang]], "[[Magic Hour (singel)|Magic Hour]]", ia resmi debut di Jepang.<ref>{{cite web|url=https://www.kpopn.com/2020/01/19/txt-japan-music-station|title=2020第一組韓國藝人！TXT 將登日《MUSIC STATION》演出|accessdate=2020-01-19|work=|language=zh-hant|archive-date=2020-02-13|archive-url=https://web.archive.org/web/20200213174240/https://www.kpopn.com/2020/01/19/txt-japan-music-station|dead-url=no}}</ref><ref>{{cite web|url=https://www.koreastardaily.com/tc/news/123731|title=TXT 進軍日本傳捷報出道單曲奪 Oricon 榜冠軍！|accessdate=2020-01-22|work=|language=zh-hant|archive-date=2020-02-13|archive-url=https://web.archive.org/web/20200213174251/https://www.koreastardaily.com/tc/news/123731|dead-url=no}}</ref>
