A lot of people have donated to this event—musicians, organizers, the Neptune itself—and the proceeds go to the families of the victims of last week's shootings. There are medical bills and funeral costs to pay, and households that have suddenly lost a breadwinner.

With all of those musicians, theater people, and circus folks, it's bound to be a raucous party with the roller-coaster energy of a wild, lively community contemplating the death of some of their own.

I'll be there. I hope you will, too. You can buy tickets here. They're $15.