Mixed martial artist Choo Sung-hoon shared the news that he personally attended the first day of the BTS world tour. On April 10, Choo Sung-hoon revealed through his social media that he attended the concert for the first time at Jungkook's invitation.

On the day of the performance, Choo Sung-hoon visited Goyang Sports Complex and shared photos taken in the waiting room with BTS members. The photos showed Choo Sung-hoon and his acquaintance Tommy, along with RM, Jungkook, J-Hope, V, Jimin, and other BTS members, creating a cheerful atmosphere by making finger V signs and thumbs-up gestures.

Regarding the concert, Choo Sung-hoon said, "Even though it was a performance created with the artists and ARMY (BTS's official fandom name) getting wet in the heavy rain, it was a hotter and more touching moment than any other." He added, "BTS showed the best performance, and it was truly moving. I sincerely thank them."

BTS began their 'BTS WORLD TOUR 'ARIRANG'' on the 9th at the main stadium of Goyang Sports Complex. This world tour will take place in 85 shows across 34 cities, starting from Goyang and continuing through Tokyo, North America, Europe, South America, and Asia. Performances will continue at the same venue on the 11th and 12th, with additional shows planned in Japan and the Middle East.