The wildly popular superstars were due to perform on TV Asahi on Friday, but the station abruptly cancelled the show.
A picture of Jimin wearing a T-shirt depicting the USA atomic bombing of Japan, which killed hundreds of thousands of people, starting being shared online. The problem is not the relation between Japan and Korea. The designs include a photo of Koreans celebrating liberation and a photo of an atomic bomb detonating in Japan, which contributed to Japan's surrender to the Allied forces and thereby Korea's liberation.
The top reads: "Patriotism OurHistory Liberation Korea", and features a photo of the mushroom cloud over Hiroshima and another picture of the Korean people celebrating their Independence Day on 15 August 1945.
It wasn't long before the Japanese words for #Unforgiveable and #AtomicBomb started trending on Twitter - and some Japanese social media users were furious. "Music Station" stated on its official website, "A specific T-shirt worn by a BTS member caused a controversy, which was reported by media".
"The T-shirt that one of the members wore made headlines and became controversial", TV Asahi explained in a statement announcing the cancelled performance.
BTS later apologised to its fans for not being able to make an appearance. "We apologise for disappointing fans who were looking forward to this".
Universal Music said it will continue to support BTS but confirmed their appearance on the live music show Music Station was cancelled.
Japan, meanwhile, became the only nation to have experienced a nuclear attack when the United States dropped atomic bombs on Hiroshima and Nagaski killing an estimated 200,000-plus people at the end of WWII.
BTS member Jimin reportedly wore the shirt previous year, on August 15, when Koreans celebrate the end of Japanese occupation in 1945.
Now, after BTS's incident with "Music Station", these netizens are more aggravated than ever regarding IZ*ONE's ongoing, active promotions in Korea.