Ue o Muite Arukō" (Japanese: 上を向いて歩こう; "I Look Up as I Walk"), alternatively titled "Sukiyaki", is a song by Japanese crooner Kyu Sakamoto, first released in Japan in 1961. The song topped the charts in a number of countries, including the U.S. Billboard Hot 100 in 1963. The song grew to become one of the world's best-selling singles of all time, selling over 13 million copies worldwide.

"Ue o Muite Arukō" (pronounced [ɯe o mɯite aɾɯkoꜜː]) was written by lyricist Rokusuke Ei and composer Hachidai Nakamura. The lyrics tell the story of a man who looks up while he is walking so that his tears will not fall, with the verses describing his memories and feelings. Ei wrote the lyrics while walking home from participating in the 1960 Anpo protests against the U.S.–Japan Security Treaty, expressing his frustration and dejection at the failed efforts to stop the treaty. However, the lyrics were purposely generic so that they might refer to any lost love.

Source: Wikipedia