X1(엑스원) is a group formed by the top 11 contestants from Produce X 101: Seungwoo, Seungyoun, Wooseok, Yohan, Hangyul, Junho, Minhee, Dohyon, Dongpyo, Eunsang, and Hyeongjun. They are set to promote for 5 years under Swing Entertainment: the first half is meant for them to focus solely on the group and the second half they will be able to do work within their own companies such as debuting as a soloist or a member of a new group or returning to resume work with a former group. Their official debut day is on August 27th, 2019.

X1 Fandom Name: -
X1 Official Fan Color: Butterfly, Ethereal Blue, Sunshine and Galaxy Blue

X1 Official Accounts:
Twitter: @x1official101 & @x1members
Instagram: @x1official101
Facebook: X1
YouTube: X1
Vlive: X1
FanCafe: X1