BTS have a lot of fans (ARMY) from all over the world.
On their Busan concert stage fans were expecting them with a big announcement.
In the middle of the concert the ARMY got a great view Of Taehyung's chest and belly button
Taehyung was on stage in red t-shirt with buttons
Jungkook started to remove his buttons exposing his chest partially.
The fans also get a glimpse of his belly buttons
The boys have been rocking in gym to give their best in Busan concert
The ARMY is in full craze seeing this.