Japanese Foreign Minister Taro Kono awarded letters of appreciation to popular animated characters Pikachu and Hello Kitty in Tokyo on Thursday, as recognition of their contributions to Osaka's World Expo 2025 bid. /VCG Photo

Appointed as Osaka's official ambassadors in December 2017, the two prominent entertainment icons have immensely helped in promoting the city. /VCG Photo

Yoshihiro Seki, Japanese Minister of Economy, Trade and Industry, also attended the award ceremony in Tokyo. /VCG Photo

Osaka has officially been chosen to host the World Expo in 2025, with the theme "Designing Future Society for Our Lives."/VCG Photo