Maybe my Mom liked this song and played it often, maybe it was on the (transistor!) radio a lot - after all it was number one. Or maybe the long drive we had that summer of 1963 in our move from New Jersey to New Orleans caused us to hear it many times on the car radio? Again, not sure why the song sticks out in my memory, but it does.
Tragically, Kyu Sakamoto was killed in the 1985 JAL123 airplane crash. Thank you for this song Mr. Sakamoto.