Illustrative image
DEBUT
2019.8.27FANDOM
ONE IT01When did X1 debut?
X1 debuted on August 27, 2019. Their debut song was “Flash”.
02What is X1's fandom called?
X1's official fandom name is ONE IT.
03What is the activity status of X1?
X1 has disbanded.
Sources · 2026-11-15
en.yna.co.kr/view/AEN20190827008500315
koreajoongangdaily.com/entertainment/who-is-x1/12764950
soompi.com/article/1346593wpp/produce-x-101-group-x1-announc