Japan's Emperor Akihito celebrates 82nd birthday (9 images)

Japan's Emperor Akihito waves to well-wishers during his 82nd birthday greeting at the East Plaza, Imperial Palace in Tokyo, Japan, on December 23, 2015. Photo by Keizo Mori/UPI

Japan's Emperor Akihito (L) waves to well-wishers during a birthday greeting for Emperor Akihito's 82nd birthday at the East Plaza, Imperial Palace in Tokyo, Japan, on December 23, 2015. Photo by Keizo Mori/UPI

Japan's Emperor Akihito (L3) waves to well-wishers with Empress Michiko (L4), Crown prince Naruhito (L2), Crown princess Masako (L), Prince Akishino (R4), his wife Princess Kiko (R3), Princess Mako (R2) and Princess Kako (R) during a birthday greeting for Emperor Akihito's 82nd birthday at the East Plaza, Imperial Palace in Tokyo, Japan, on December 23, 2015. Keizo Mori/UPI

Well-wishers gather to celebrate the 82nd birthday of Japan's Emperor Akihito at the Imperial Palace in Tokyo, Japan on December 23, 2015. Photo by Keizo Mori/UPI