Earlier this month, in a blog post, musician Patrick Metzer wrote about a musical sequence that consists of repeating the fifth and 3rd notes in a major scale to create a call that is easy to sing and easy to recognise.
It has been used in music for a long time, although he makes a case that it is very popular right now, and has been commonly used for the last 10 years.
Quartz created a compilation of some of the tracks to illustrate it.
Once you are aware of it, you will realise that the "Millennial Whoop" is everywhere at the moment.
This article first appeared on 702 : You might not know what the Millennial Whoop is but you have definitely heard it