Billboard’s charts will give more weight to paid music streams in 2018
 

Starting in 2018, Billboard will change the way it counts streaming music for its charts. Right now, the way it works for the Billboard Hot 100 songs chart is that there are two tiers for streaming music: on demand (where you can select what you list...

https://www.engadget.com/2017/10/20/...pported-tiers/