So i had a thought / observation that when you play a playlist that focuses on songs from the previous years (like 'Top Hits of 2010s' ), it seems like there are more One-hit wonders in comparison to today.
For example, if we play a playlist of hits from 2009, it seems / feels like there is a greater range of unique songs or more artists which could be classified as One-hit wonders.
Scrape the data from Wikipedia about the top singles of year x
Get the count of how many artists are mentioned in the year x
Split the cells that have the words ' and ' or ' featuring '.
Plot the data


Doesn't seem like there's a trend in respect to One-hit wonders.
Number of unique artists is growing.
Artists with 2 hits per year do start to increase a bit from ~1990, which could maybe explain why it seems like there is less uniqueness in songs. Maybe. Or more collabs.