The Southern-rock jam-band giants are known more for live shows than studio work, and these tracks are among their more keenly awaited bust-outs. The hard-shuffling, vaguely threatening "Boom Boom Boom" rejuvenated Panic two decades into their career; "Imitation Leather Shoes" takes Kafka's Metamorphosis to the honky-tonk; and the 16-minute "Second Skin" sports a dark, dank voodoo groove.