Walls (180 Gram Vinyl, Gatefold LP Jacket, Digital Download Card)It's easy to forget that when Kings of Leon broke through in 2008 with Only by the Night, they were already four albums deep into their career. Buoyed by the popularity of hits "Sex of Fire" and "Use Somebody," the Tennessee four piece transformed from ragged post punk upstarts into arbiters of anthemic mainstream rock uplift, exposing their abiding love for U2 in the process. In some ways, the tonal shift made sense to a band poised to storm the