BTS ARMYs were all excited to watch the band's youngest member rock the stage at the Global Citizen Festival in New York. What they were not prepared for was Jungkook's sudden announcement of a new single called 3D. The vocalist dropped the teaser of the single at the concert, as a surprise for ARMYs attending as well as fans across the world.

However, a video from the Jungkook's rehearsal at the Global Citizen venue a day prior was leaked by some overzealous fans, potentially spoiling the surprise. After his performance at the Global Citizen Festival, Jungkook went live on Weverse to talk to his fans, and also scolded the person who leaked the video.