CIX (씨아이엑스; also known as Complete In X) is a 4-member boy group under C9 Entertainment. The group consists of BX, Seunghun, Yonghee, and Hyunsuk. They debuted on July 23, 2019, with the mini album Hello Chapter 1: Hello, Stranger and it's title track Movie Star.

Bae Jin Young left both C9 Entertainment and the group in 2024. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.