There were 183 different #1 hits in May 2021, depending on location. To see how your city compares to others, check out this data journalism project by The Pudding that uses Youtube's API. This 2021 edition includes more regions of the globe than previous editions.
The Pudding first put out a music map in January 2018, and since then, they've updated it several times. The original interactive map lets users explore music preferences across the globe— and change the time frame. You can time travel to the music map of 2018 to see the hits of past years in places like Kazakhstan, Czech Republic, The Bahamas, and all sorts of places in between
