Theatre Thursday: Put a ring on it

I have a couple of classes that are classes and a 1/3 which means it's a full class (20-24) and another 1/3 of another class. Today, four 3rd graders arrived before the full class. I told them they could chill a little bit before the class could arrive. I heard them get on the stage and start singing "Put a Ring on It" by Beyonce. This alone was fine until I turned around and saw all 4 doing the dance that goes with it. Have you seen it? Not hysterical when Beyonce does it; but side-splitting when it's done by four 9 year olds.