group BtoB Possession Seo Eunkwang is showing off a spectacular stage at 2021 BtoB 4U Online CONCERT 'INSIDE' which was held on Online Live on the afternoon of the 23rd. / Photos
About BtoB
BtoB is a South Korean boy band formed in 2012 by Cube Entertainment. The group consists of Seo Eun-kwang, Lee Min-hyuk, Lee Chang-sub, Im Hyun-sik, Peniel Shin and Yook Sung-jae.
 Wikipedia