For an example of an AI generated song that's gone viral in the last few days, getting millions of views on Spotify / Youtube, see this post from earlier today:

"Tell HN: Viral Hit Made by AI, 10M listens on Spotify last few days" [1]

[1] https://news.ycombinator.com/item?id=46600681

This is quite sad, in that the fact that it's AI generated is hidden in the disclaimer and nearly all of the comments think it's a real human.