There's probably a selection bias because spotify is not equally popular everywhere around the world. The majority of the matches seem to fall in the USA and ot

There's probably a selection bias because spotify is not equally popular everywhere around the world. The majority of the matches seem to fall in the USA and other english speaking countries as far as I can see. But even beyond that, American are so good at exporting their cultural products I'm pretty certain that american music is the most popular international music. I mean, even in non-english speaking countries many (most?) new bands sing in english to try and emulate them.