X1

About

Formed by CJ E&M through the reality show Produce X 101, the K-pop outfit would debut with song called "Flash" from an album titled Emergency: Quantum Leap. They made their debut at a showcase at the Gocheok Sky Dome.

Trivia

They debuted in their own reality show called X1 Flash on August 22, 2019 on Mnet. They debuted under Swing Entertainment and were co-managed by Stone Music Entertainment. They disbanded in January of 2020.