ATEEZ’s oldest member is Seonghwa, who was born on April 3, 1998. He is currently 26 years old in Korean age and 25 years old in international age. Seonghwa is a vocalist and dancer in the group, and he was born in Sacheon-si, South Korea.
Seonghwa shares the position of being one of the oldest members with Hongjoong, who was born on November 7, 1998, but since Seonghwa was born earlier in the year, he is technically the oldest. Both Seonghwa and Hongjoong are key figures in ATEEZ, with Hongjoong also serving as the group’s leader.
ATEEZ debuted on October 24, 2018, under KQ Entertainment, and Seonghwa has been an integral part of the group’s success since then. He is known for his talents as a vocalist and his role in the group’s performances.