pop up

 You've got the description: "one-night pop-up dance club exclusively for Denver's young professionals."  You've got the date and time, but you have to RSVP for the location, and wait for the return e-mail.  Mysterious.  Organizers call it "Uncompromised."

"Hostess Heather" (we know her full name, but we're not telling) visited "First Take with Lando and Chavis" to tell us about this latest version of the old "rave" concept.  "New York was doing this about two years ago," she said.  "The key that you're using the space for something different that what it was intended."