Did Beyonce's New Musical Campaign Just Start?! Everyone Be Upstanding for "Formation"

I don't know what is happening. Has Beyonce just gone and done another surprise release?! New song Formation (Dirty) has popped into existence on Internet out of nowhere- with a banging and politically charged video, no less- and I don't know what is goin' on!!

Do you!? Currently "unlisted", watch it before it (potentially) disappears!

Thoughts?