Start with four richly gifted singersongwriters. Add 3/4 cup married life, four kids, three cats, one piano, four guitars, a rockin’purple bass, a dollop of sharp social commentary, and a pinch of PMS. Set this on a road tour for 18 years and you’ve got Diva Nation, a two-hour hot flash starring The Four Bitchin’Babes. Take an evening away from the dishes, tell the kids they can drive their own damn selves to soccer practice and forget that idiot at work who insists on calling you “honey.” Join the chorus as it rises up singing, “We are bitchin’, hear us roar!”