Leader, Main Vocalist
Birth Date
November 22, 1990
173 cm
65 kg
Blood Type

Seo Eun-kwang (Korean: 서은광; born November 22, 1990), also simply known as Eunkwang, is a South Korean singer, entertainer, musical actor and the leader and main vocalist of the South Korean boy group BtoB.


Seo was born on November 22, 1990, in Yongin, Gyeonggi in South Korea. He graduated from Dongshin University, majoring in practical music. He has one younger brother named Seo Eun-chong.

Military service

Seo reportedly began military duty by enlisting as an active duty soldier in the military band on August 21, 2018 at the ROK army’s 27th division, nicknamed the ‘We Will Win’ unit in Gangwon-do’s Hwacheon County. In October 2018, he received first place out of the recruits in the overall results during basic training. On March 14, he was selected as ROK-SWC for receiving more than 90 points in sit-ups, push-ups, 3 km running, 10 km full combat gear marching and more.

He was discharged from the army on April 7, 2020.


In 2017, Seo participated in the Donation Applause 337 Relay Campaign with another 200 entertainers and sports stars. The campaign is to share more than three donations and to send warmth to more than three friends and purchase more than 7,000 won. This resulting in Seo’s 418 fans donated to the Children’s Rehabilitation Hospital, a building facility who was fully funded by Seo to treat children with severe disabilities. On November 21, 2017, Seo and his fans donated ₩10 million to help children with childhood diabetes. Cube Entertainment revealed, “Eunkwang’s fans wanted to do something nice for his birthday and started collecting donations for the Korea Diabetes Association, which BtoB works as ambassadors. When Eunkwang heard his fans were preparing to donate, he told the label that he wanted to participate as well and he participated in the donation and delivered the scholarship letter himself.”

On April 9, 2019, while serving the military, Seo donated ₩20 million to help the affected areas of the Sokcho Fire through Hope Bridge National Disaster Relief Association.

In January 2020, Korea Heart Foundation reveals that Seo donated ₩20 million to help financially troubled heart patients at the end of 2019. In April, 2020, BtoB’s fan club ‘Melody’ donated women’s hygiene products to commemorate Seo’s discharge. The fan club delivered 3,201 sanitary napkins and wipes through World Human Bridge for pregnant women in vulnerable families who are suffering from COVID-19.

Source: wikipedia