A few of the most famous German rappers published a song about cryptocurrencys called "Hodln".
The most Famous of them are Sido & Savas.
As most of you don t know them, I ll link the wikipedia of both of them:
Sido: https://en.wikipedia.org/wiki/Sido
Savas: https://en.wikipedia.org/wiki/Kool_Savas
The Song has been published at You Tube:
In my opinion , this does show thar Cryptocurrencys are on a good way to get accepted by the mainstream.