15 DECEMBER 2018: HONG KONG, CHINA

Three passengers on a Korean Air flight from Hong Kong International to Seoul caused a delay to the flight as they surrounded K-pop boyband Wanna One, who were also on the flight, and ignored cabin crew who told them to remain seated. After flocking around the group, the three fans insisted on departing from the aircraft, which meant that all 360 passengers had to disembark and go through security checks again before the flight could take off, delaying the flight by more than an hour.