A weekly ranking of the most popular songs in Japan combining physical and digital sales, audio streams, radio airplay, YouTube and GYAO! video views and karaoke data, compiled by Billboard Japan.
This is the first time that a single song has held both top spots. Since its release in ... an increasing number of songs by Japanese artists have been exceeding 100 million streams.
Plus: Prizes have been added in new categories including the "Co-creation categories" linked to companies involved in music.