What is Kappa Kappa Psi?

I was with some of my bruhs at a club down in New Orleans and we ran into some guys from Kappa Kappa Psi. They stepped had brands and had a sign. I went to visit a friend in Ohio and met another gentleman from Kappa Kappa Psi. He said he never heard of branding, stepping, or anything of that nature. Are there two Kappa Kappa Psi's or is it different in regions??? Someone please enlighten me.