Just when the BTS Armys thought they’ve had their fill of Jungkook during the K-pop supergroup’s “Arirang” concert in Madrid, Spain, he went live anew on Weverse early Sunday morning to display his dance moves, and then show his mellow side by singing an acoustic version of “Into The Sun.” During his four-hour Weverse live, the youngest BTS member delighted fans with his playful antics, such as getting inside a cabinet, showing his chest, and op…