(L-R) Taehyung/V, Suga, Jin, RM, Jungkook, Jimin and JHope of South Korean boy band BTS speak at the SDG Moment event as part of the UN General Assembly 76th session General Debate at United Nations Headquarters, on Sept. 20, 2021 in New York. (AFP) A "once-in-a-generation" music event circled the...