Park Seo Joon and Hyungsik attended BTS' concert.
On August 25-26, BTS kicked off their world tour with the first shows in Seoul at Olympic Stadium. Thousands of fans made attendance, as well as Park Seo Joon and Hyungsik. The two stars were spotted in the audience enjoying the show.
Many assume Park Seo Joon and Hyungsik attended in support of their close dongsaeng V, who've they worked together with on the drama 'Hwarang'.