Some 50-plus years into her career, sharp-tongued boogie bunny Wanda Jackson remains the uncontested queen of rockabilly. Her sharp-throated warbles are the stuff of rock 'n roll legend — croons fiery enough to scuff the shine of Carl Perkins' blue suede shoes. And rising high above the ever-present beat, her lively licks still have a way of setting knees a-knocking.