“Ue o Muite Arukō” (I'll walk looking up) is a song about holding back tears. Alone, on a spring or summer or autumn night, the singer walks with his face turned up to the sky, so that the tears won't fall; he looks at the stars and remembers happier days.
In 1963 it reached number one on the US Billboard Hot 100 — still the only Japanese-language song to do so — under the title “Sukiyaki”, a hot-pot dish that has nothing to do with the lyrics, chosen because it was a Japanese word Americans knew. Kyu Sakamoto died in a plane crash in 1985.
It's slow, gentle and simple, perfect for beginners: to look up, to walk, tears, stars, alone. The “-ō” ending of arukō (let's walk / I'll walk) is a useful grammar point too.