I've never seen or heard anything like this before, and it's pretty dang cool.
Apparently there is a group called the "Rockin' 1,000" that is made up of 1,000 musicians.
ONE. THOUSAND!
They've been a group since 2015.
Last month they got together and did a cover of Rage Against The Machine's " Killing in the Name".
Check out the awesome cover below!