Justin Bieber Celebrates His Wifey Hailey's Birthday In JapanJustin Bieber Celebrates His Wifey Hailey's Birthday In JapanPicture Credits: justinbieber/ InstagramJustin Bieber posted a sweet tribute on his wifey Hailey Baldwin Bieber's birthday. Picture Credits: justinbieber/ InstagramThe couple are holidaying in Japan, where they're seen feeding fishes in a koi pond. Picture Credits: justinbieber/ InstagramJustin called Hailey his favourite human being. Isn't that sweet? Picture Credits: justinbieber/ InstagramThey shared a romantic moment in Japan, surrounded by bamboo trees. Picture Credits: justinbieber/ InstagramHailey Bieber certainly had a romantic birthday in Japan with her beloved. Picture Credits: justinbieber/ Instagram