Looks like there is a new chart for artist to land on. According to Bloomberg.com "Billboard magazine will release a largely streaming-based tally of the most popular songs in the world Monday, the first time the publication has compiled a list that measures the entire world at once. Rapper Cardi B will lead the charts in its first week with her new song “WAP,” followed by the South Korean boy band BTS with Dynamite.”
All in all Billboard is creating chart system more or less that will be global, listing the top songs/artist throughout the world and not just the United States. "The first-ever authoritative ranking of the top songs globally."