Kim Oh-Seong (B4)

Kim Oh-Seong (김오성) or better known underneath his stage name B4, is a South Korean Idol underneath Louph and Big Hit Entertainment. He's one of the youngest members of GMK and has the positions of Main Vocalist and Lead Dancer of the group.

He's often associated with his quiet and calm personality, and referred to as the grandpa of the group. Fans often loves his mature fashion sense, and great music taste.

Life and Career
Oh Seong was born the 18th March, 2001, in Wanju. There he lived with his two parents and younger sister. Although in 2008, his family decided to move to Los Angeles, America, for a few years. There he enrolled into a private school alongside his younger sibling and gained interest in American Football.

In 2013, his family moved back to South Korea and Oh Seong began taking interest in the Korean culture, so much that he wanted to become a history teacher at a private Korean school.

In 2020, Oh Seong revealed that he audiotined at Big Hit Entertainment a few years before the other members. He was also the first member to be picked.

As for their actual debut in 2019, as the story goes, it didn't go well. The boys was often overseen or considered a joke among the music industry. It wasn't before their debut song Blood LINE got an award that the boys were slowly considered a valid group.

As for 2020, Oh Seong is very active on social medias and is very often appearing on different reality shows as a guest star. He's planned to have yet another comeback with GMK and take the supporting role in a new Korean Drama.

Filmography

 * Money (supporting role) Kim Chin-Hwa (10th April, 2020)