Kpop Charts 在Twitter: "X1 (@x1official101) and IZ*ONE (@official_izone) are the only 4th generation groups to reach #1 on MelOn. https://t.co/5pak29Ro9s" / Twitter
X1 profile: members, debut date, songs, fun facts - KAMI.COM.PH
X1 debut marked by record win time – Shinin': Kpop kosmos
Where are the X1 Members Now? | allkpop
Where Are They Now? — Here's What X1's 11 Former Members Are Doing 1 Year After Disbandment - Koreaboo
X1 on Twitter | Kpop, Victon, V live
Former X1 members Nam Do Hyun & Lee Han Gyul to perform at '12th K-Pop Festival 2020' in Sapporo | allkpop
X1 Will Debut But Will They Be Able To Perform On Major Music Programs? Music Bank Is Reportedly A No Go - Kpopmap
X1 x KPOP Universe
Boy band X1 disband over vote-rigging scandal on Produce 101, Korean reality talent show | South China Morning Post