JJ Project is a South Korean duo, consisting of Jay B and Jinyoung. They were formed by JYP Entertainment and released their debut single "Bounce" in May 2012. They later debuted as a part of Got7 in January 2014.

Lim Jae-beom, better known as Jay B, and formerly JB, is a South Korean singer, songwriter and actor. Jay B is the leader of South Korean boy band group Got7, a member of boy band duo JJ Project and sub-unit Jus2, as well as part of R&B soul crew Offshore as Def.. He made his small-screen debut through the drama series Dream High 2 in 2012.