BTS’ Jimin turns 31 as fans transform cities into birthday celebrations
BTS member Jimin celebrated his 31st birthday on October 13, with fans organising large-scale celebrations across several countries and fellow group member Jin sharing a personal birthday message.
Jin posted on the fan platform Weverse, explaining that it was still October 12 in his location but the app had reminded him to congratulate Jimin.
The message came as BTS fans, known collectively as ARMY, organised events ranging from decorated public transport to charity fundraisers in honour of the singer.
Fans turn Jimin’s birthday into a global celebration
In Peru, fans transformed a train on Lima’s Metro Line 1 into a moving birthday tribute, decorating it with Jimin’s photographs, colourful illustrations and messages.
The train travels through 26 stations, allowing passengers to see the decorations throughout the city.
The celebrations followed BTS’ three concerts in Lima on October 7, 9 and 10. During the final performance, thousands of fans surprised Jimin by singing Happy Birthday as the group addressed the audience.
Peruvian ARMY singing "Happy Birthday" to him and Jimin watching the fan project for his birthday 🐥💛🇵🇪 https://t.co/u9r3dhEqMh
— yaz⁷ (@_sgminseven) October 11, 2026
In Japan, celebrations took a charitable turn. Fans organised a lemonade stand in Osaka, directing proceeds towards Child Chemo House, which provides accommodation for families of children undergoing cancer treatment.
Japanese supporters also arranged birthday advertisements in Tokyo, Osaka and other cities, while several landmarks in Kobe were scheduled to illuminate in yellow.
Meanwhile, fans in Mexico City arranged a decorated birthday bus operating from October 9 to November 7. Additional advertisements appeared across Mexico, South Korea and several European cities.
Celebrations have also reached Central Asia, with fans arranging LED birthday advertisements in Almaty and Astana, Kazakhstan.
The festivities coincide with BTS’ ongoing Arirang World Tour, which continues in Chile on October 14. Fans there have planned an LED advertising truck near the concert venue to extend Jimin’s birthday celebrations into the next stop of the tour.
