Kim Sang Gyun

Kim Sang Gyun (formerly known as A-Tom) is a South Korean rapper and vocalist under STARROAD Entertainment and is currently a part of the duo JBJ95.

Sang Gyun is a former member of the group ToppDogg (now known as Xeno-T) that debuted in 2013. He joined the project group JBJ along with follow eliminated Produce 101 contestants. JBJ disbanded on April 30, 2018 following the end of the 7 month contract.