Sakamoto Kyu, "Sukiyaki"

This song was a number one hit on US Billboard charts in 1963, something no other Japanese musician has accomplished. The original title was "Ue o muite aruko" (Walking Along, Looking Up), and for some reason, it was sold under the name Kyu Sakamoto. As Ian Condry notes, "no food is mentioned in the Japanese original."

Here's a version with English translation.

East End X Yuri: J-Rap

According to Ian Condry, it was two 1995 hits by East End X Yuri that put rap on the map in Japan., and spawned the popular, "fun" brand of mainstream rap known as J-rap. The singles, "Maicca" and "Da.Yo.Ne" both sold about a million copies.

I think this is the song "Maicca":



Here's "Da.Yo.Ne":