C9 Boyz is a South Korean boy band formed in 2016 under the entertainment company C9 Entertainment. The group originally debuted with five members and is known for their energetic performances and catchy music. They gained popularity through various music releases and participation in reality shows. The group has released several singles and albums, showcasing a mix of genres, including pop and hip-hop. C9 Boyz has also been involved in various promotional activities and collaborations, contributing to their growing fanbase both in South Korea and internationally.