Rap has consistently been at the top of of charts that gauge musics popularity such as Billboard Top 100, Spotify Top 100 etc. since the early 2000s and even before then.
that still doesn't make sense because 1 rap song could be at the very top with a bunch of different genres right below it
also i'm fairly sure that those lists don't account for every person who listens to music nor every single song that's being listened to
this also brings another question: are these lists even accurate? with so much controversial stuff that's gone on in the music industry in the past few years i wouldn't be surprised to find out that these lists are being manipulated
also how do they gauge the popularity of music? how much it's been listened to? talked about on social media? what?