Hong Seong Jun is a South Korean singer, dancer, and former member of BDC (비디씨). He graduated from Bundang High School and, before debuting, he spent 1 year and 4 months as a trainee.

He made his debut in October 2019 as the group's lead vocalist and lead dancer with their first single album, "Boys Da Capo". They were managed by Brand New Music (브랜뉴뮤직) and, for reasons unknown, the agency determined that their official debut would be the EP “The Intersection : Belief", released in September 2020, despite being BDC's second released material.

The group struggled to find opportunities to promote, and their comebacks kept being delayed. In 2023, they participated in "Peak Time", trying to increase the group's activities, but were eliminated in the first round.

In August 2023, Brand New Music announced that BDC would conclude all activities under the agency, and the members would not renew their contracts with the agency. The group was active for a short while in Japan and also held a fan meeting in South Korea in December 2023, but it seems they have now officially disbanded.

(Source: kisskh) Edit Biography