Feeling Retro? Louisville's Go Go Guerrilla Army is meeting in secret for a Pinups and Greasers Ice Cream Social this Sunday.

Go Go Guerrilla keeps the location of their flash mobs and parties a secret until 24 hours in advance. You'll know what you're doing, but not where you're going.

This time, rumor has it they're taking over a building where I suspect the architect went a little mad while planning. Why else would someone build a two story triangle with a wrap-around awning? Trust me, you can't wait to see it. Join the Go Go Guerrilla Army to get the address.

The awesome Rockabilly band "Mudflap" will be playing outside.  Inside, get your root beer floats topped with Irish Creme in a Guinness Pint glass you can take home.

For those of you guys and dolls who want to look the part, come dressed in your retro-wear. They'll have a stylist on duty to do some quick pinup hair and maybe even a henna artist for those of you who need some temporary tattoos.

Ladies, we can't be held responsible if you're so darn sexy the Jet you bring gets into a fight with that Shark who can't keep his eyes off you, although we promise to applaud madly if they break into a musical.

Cool drinks, hot music, and stealthy funtimes abound for all you bad boys and girls.

Full disclosure - in addition to writing for Louisville.com, Chris-Rachael is the Rebel Leader of the Go Go Guerrilla Army. We don't hold it against her.