Performers from K-pop's biggest act BTS have reunited on stage for a free concert in the South Korean port city of Busan on October 15, 2022. South Korea¡¯s government hopes the event will boost the country¡¯s bid to host World Expo 2030. The concert was the first time members of the boy band have performed together since June when they announced a hiatus to allow them to pursue solo careers.