X1 (엑스원) was an 11-member project boy group under Swing Entertainment and Stone Music Entertainment. They were formed through Mnet's competition reality show Produce X 101 and debuted on August 27, 2019 with their first mini album 비상 : Quantum Leap.
They were intended to be active for five years on a special contract, where the first semester is intended for them to focus solely on the group, and in the second half they will be able to do work within their own companies, such as solo debut, a member of a new group or returning to work with a former group.
2019–2020: Debut, Produce 101 vote-rigging controversy, and disbandment
Following the conclusion of Produce X 101, vote rigging allegations surfaced after viewers noticed irregularities in the number of votes counted, which series PD Ahn Joon Young later admitted were rigged. Despite of this at the time, their debut moved forward.
A reality show titled X1 Flash, which followed their process to debut, began airing on August 22. X1 debuted on August 27 with the release of their first mini album 비상 : Quantum Leap and held their debut show-con at the Gocheok Sky Dome in Seoul.
By November 2019, the group had temporarily halted all activities due to the severity of the event. It was also revealed that some members had still not yet signed contracts with CJ ENM due to the ongoing investigation.
On December 30, CJ ENM's CEO Heo Min Heoi held a press conference to make a formal apology regarding the manipulation controversy surrounding the Produce 101 series. He explained that CJ ENM will be compensating everyone harmed due to the incident. Regarding IZ*ONE and X1, he shared that they are working on plans for the groups to resume activities, and Mnet will give up all resulting profits towards a fund.
On January 6, 2020, the agencies representing the members announced the group has disbanded due to not being able to reach an unanimous agreement.
|3||Han Seung Woo (한승우)||PlayM Entertainment||Leader, Main Vocalist|
|5||Cho Seung Youn (조승연)||Yue Hua Entertainment||Main Vocalist, Lead Rapper, All rounder|
|2||Kim Woo Seok (김우석)||TOP Media||Lead Vocalist, Visual|
|1||Kim Yo Han (김요한)||OUI Entertainment||Lead Rapper, Vocalist, Center, Face of the Group|
|7||Lee Han Gyul (김요한)||MBK Entertainment||Main Dancer, Lead Vocalist|
|9||Cha Jun Ho (차준호)||Woollim Entertainment||Vocalist, Visual|
|6||Son Dong Pyo (손동표)||DSP Media||Lead Dancer, Vocalist|
|10||Kang Min Hee (강민희)||Starship Entertainment||Vocalist|
|X||Lee Eun Sang (이은상)||Brand New Music||Vocalist|
|4||Song Hyeong Jun (송형준)||Starship Entertainment||Lead Dancer, Rapper, Vocalist|
|8||Nam Do Hyon (남도현)||MBK Entertainment||Main Rapper, Maknae|
- 비상 : Quantum Leap (2019)
- Kim Woo Seok is a member of UP10TION.
- Han Seung Woo is a member of VICTON.
- Cho Seung Youn is a member of UNIQ.
- Lee Han Gyul is a member of IM.
- ↑ Soompi: “Produce X 101” Group X1 Announces Fan Club Name
- ↑ Soompi: Check Out The Final Dream Lineup For "Produce X 101" As Voted By International Fans
- ↑ Soompi: Announcing The Top 11 Of "Produce X 101" — X1
- ↑ 4.0 4.1 Soompi: Breaking: X1 Members’ Agencies Announce Group’s Disbandment
- ↑ The Korea Times: 'Producer 101' director admits more vote-rigging
- ↑ Soompi: X1 Shares Exciting Details For Debut Reality Show With Teaser Video
- ↑ Soompi: X1 Confirms Date For Debut Show-Con
- ↑ Soompi: Mnet Discusses Future Plans For X1 And IZ*ONE
- ↑ Soompi: X1 And CJ ENM Have Reportedly Not Signed Contract Yet
- ↑ Soompi: CJ ENM Issues Formal Apology Regarding "Produce 101" Series Controversy + Reveals Update On IZ*ONE And X1
- ↑ Soompi: "Produce X 101" Group X1 Chooses Their Leader