You might be aware of the enourmeous success of the song "Despacito" by Luis Fonsi and Daddy Yankee. (It has been number one in many countries, as different as Mexico, Lebanon, Austria; It is the most viewed, liked and commented YouTube video ever; it won four Grammy's a week ago; etc).
I would like to know, ideally with resort to some theories of music, but not restricted to that, what have scholars, critics of music, and perhaps music producers said about the success of the song (and video). Has there been some research on the topic?
I imagine producers of music are constantly studying trends in music and might have ideas about the characteristics that bring success to a song, and are constantly trying to exploit such characteristics.
PS: I asked this in the other music SE site, but was closed as off-topic for being primarily opinion-based. However, I am asking for research or ``professional analysis'' on the topic. I hope I will have better luck here.