B1A4 members

South Korean singer, composer, and actor

Gong Chan-sik (; born August 14, 1993), better known by his stage name Gongchan (), is a South Korean singer and actor, best known as a member of the South Korean boy group B1A4.

South Korean actor, rapper and singer

South Korean singer, rapper and actor

Lee Jung-hwan (; born March 20, 1992), known professionally as Sandeul () is a South Korean singer-songwriter. He is a member of the South Korean boy group B1A4, that debuted on April 23, 2011. He debuted as a solo artist on October 4, 2016.