DJ Dana Armstrong and her Valley Fever crew are stuck in the past, when country music didn't mean Toby Keith and Taylor Swift. That stuff's fine if you're looking for a little pop pleasure, but if you're looking for the hard stuff — the Waylons and Willies — Valley Fever (every Sunday night) at the Yucca is the only night for you. In addition to hosting live retro-country acts (both of the touring and local variety), Armstrong and her pal DJ Johnny Volume (who knows his way around the dusty "country section" of the record store as well as he does the punk 45s) spin classic outlaw stuff, the kind of gritty, pedal-steel whining music you won't hear on KMLE or at city slicker Scottsdale spots.