Kim Sang Gyun (1995)

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 eliminated Produce 101 contestants. JBJ disbanded on April 30, 2018, following the end of the 7-month contract.(Source: Wikipedia)