X's car-crash fusion of old-school rock ‘n' roll and punk-schooled social commentary lost none of its potency even as the band breached the mid-'80s mainstream—“I'm Lost” may sound like a radio-ready fist-pumper, but it paints a bleak picture of living in poverty. At the same time, they were digging deeper into rock's roots, whether putting a CCR spin on Dylan's “Highway 61 Revisited” or exploring toe-tappin' twang with their Knitters offshoot.