CIX (band)

2017–2018: Pre-debut activities

As a 10-month old trainee, Bae Jin-young representing C9 Entertainment, participated in the reality competition series Produce 101 Season 2, finishing in tenth place and becoming members of the project boy group Wanna One.^[2] He promoted with the group until its disbandment in January 2019. In April 2019, Bae later debuted as a soloist with his self-composed album Hard to Say Goodbye^[3] and held his first Asia fan-meeting tour "I'm Young" in connection with his debut, featuring eleven shows.^{[4][unreliable source?]}

In October 2017, BX participated in the reality competition series Mix Nine under his birth name Lee Byoung-gon and finishing in 9th place thus earning a spot in the winning group. However, YG later decided not to debut said group.^[5] In November 2017, Seunghun appeared on survival program Stray Kids as a trainee of YG Entertainment.^[6] In 2018, BX and Kim Seung-hun competed in the survival show YG Treasure Box for the label's next boy group, Treasure, where both failed to debut in the finale.^[7]

2019–2021: Debut, Hello tetralogy and begin of OK series

In February 2019, C9 starting revealed all five-members individual profile videos of upcoming boy group with tentative name C9Boyz.^[8]

In May 2019, the group's official name and logo were revealed.^[9] Ahead of debut, the group broadcast the reality show Hello CIX on June 4, 2019, through V Live. The show consisted of 10 episodes showcasing their various charms and road to debut.^[10]

On July 23, 2019, CIX released their debut EP Hello Chapter 1: Hello, Stranger and lead single "Movie Star".^[11] The album was a mild commercial success, selling 70,000 copies in two months.^[12] "Hello, Stranger", the debut showcase of CIX, was held on July 24, at SK Olympic Handball Gymnasium^[13] and the tickets reportedly sold out within 30 seconds, with over 16,000 fans trying to get on the server at once and with over 5,000 fans being put on standby for the tickets.^{[14][unreliable source?][unreliable source]} On July 30, six days after their debut showcase, the group placed first on The Show, and earned the title of one of the fastest winning K-pop acts.^[15] CIX signed with Warner Music Japan in August^[16] and made their Japanese debut on October 23, 2019, with a Japanese version of Hello Chapter 1: Hello, Stranger. The Japanese album features an additional Japanese track called "My New World".^[17] On November 10, CIX held their Japanese debut showcase "Complete in X" at Line Cube Shibuya, and at Zepp Namba on November 17.^[18] Nine days later, CIX released their second EP Hello Chapter 2: Hello, Strange Place with the lead single "Numb",^[19] tackling social issues among youth in South Korea, such as poor mental health, bullying, and the obsession with test results among students.^[20]

On April 1, 2020, CIX released their first Japanese single Revival.^[21] On April 15, C9 announced that CIX would hold their 1st fan-meeting tour, "Hello, FIX" starting from locations in North America, Taiwan, Thailand, and South Korea, but were postponed due to the COVID-19 pandemic.^[22] In September, the fan-meeting was announced to be held online on October 11 in 40 regions.^[23] On April 30, CIX announced that their third EP Hello Chapter 3: Hello, Strange Time with the lead single "Jungle", which was originally set to be released on June 30, 2020.^[24] On June 24, it was announced that a member of the group, Bae Jin-young, had injured himself during a practice session. C9 stated that due to his injury they would have to postpone the release of the album and new plans would be released soon.^{[25][unreliable source?][unreliable source]} On October 15, CIX announced that their third EP would be released on October 27, 2020.^[26]

On January 14, 2021, CIX announced their fourth EP Hello Chapter Ø: Hello, Strange Dream and its lead single "Cinema" would be released on February 2.^[27] On April 14, CIX released their second Japanese single All For You.^[28] On July 1, CIX released the promotional single "Tesseract" through Universe Music for the mobile application Universe.^[29] On August 17, their first studio album OK Prologue: Be OK and its lead single "Wave" was released.^[30]

2022–2026: Pinky Swear, continue of OK series, Jinyoung's departure, Thunder Fever, GO series and disbandment

In March 2022, C9 announced that CIX would hold their first concert, Rebel, starting from April 15 to 17.^[31] C9 later announced new dates, with additional legs in the United States.^[32] On March 30, 2022, CIX released their first Japanese studio album Pinky Swear.^[33] On August 22, CIX released their fifth EP OK Episode 1: OK Not.^[34] On November 15, CIX announced that they would hold a world tour, "Save Me, Kill Me", starting from December 30 and 31 in Seoul and would continue in Europe and US.^[35]

On February 20, 2023, CIX announced the addition of four cities.^[36] On May 11, CIX announced that their sixth EP OK Episode 2: I'm OK would be released on May 29.^[37]

On August 5, 2024, C9 Entertainment announced the departure of member Bae Jin-young from the group after his contract with the company had ended on August 1 and the group continued as a four-piece group.^[38]

In December 2024, it was announced that the remaining four-member will release their seventh EP Thunder Fever in January 2025.^[39]On January 23, 2025, their seventh EP officially released with the electropop lead single "Thunder".^[40]The group also embarked on their fourth concert, "Thunder Fever", began in Seoul on March 28 and 29.^[41]The concert successfully held in Tokyo on April 29 and more shows was announced to be held in five Europe cities and eleven North America cities schedule in June and July.^[42]

On September 8, 2025, CIX released the EP GO Chapter 1: GO Together, with the self-composed track by BX titled "Wonder You" serving as the lead single and also marking the first entry of GO series.^[43]To promote the EP, the group held their fifth tour, GO Together, began in Seoul on November 1 and 2.^[44]The concert concluded in Tokyo on November 23 and Osaka on December 14.^[45]

On April 29, 2026, C9 announced that CIX will be disbanding, with BX and Seunghun's contracts ending on April 30, Yonghee enlisting on May 11, and Hyunsuk's contract ending on May 31.^[46][47]

Former members

• Jinyoung (배진영) – vocalist, dancer

Studio albums

Extended plays

Single albums

Singles

Soundtrack appearances

Promotional singles

Other charted songs

Music videos

Reality shows

Headlining

• CIX 1st Concert Rebel (2022)
• CIX 2nd World Tour "Save me, Kill me" (2022–2023)