The evolution of dance!

I cant help but giggle at the elements of this picture or must I call
it pictures?

In this world, we have many witnesses to the evolution of dance. The
list in my nostalagia thought goes thus:
==> disco
==> gahoo (premier gahoo)
==> galala or garala
==> awilo
==> breakdance (foreign)
==> yahooze
==> alanta
==> jerking (foreign)
==> etighi
==> azonto. And the likes(pardon me for the ones i have ommitted).

Dance has evolved into many types recently. This happened in the late
'90s and is still evolving.
When our nowadays elders used to dance at parties, it was not like
this. They just dance facing each other but alas, from approximately
1990 to date, things have changed drastically from rocking and moving
rythmically to the tune individually to dancing together as a duo.
Most especially, male and female.
That is the evolution of dance. Dance evolved, and is still evolving.