Gaslight Anthem does a great job of straddling the line between aggression and introspection. Often compared to a younger, edgier Springsteen - their wholly American tales of working class people are definitely anthemic. They were a perfect fit for Chicago edition of Riot Fest which featured some too-angry-for-my-tastes acts and others that have the just the right amount of bite (Elvis Costello, Built To Spill).
This live set is a great introduction to the band, featuring the harder edged stuff and some of the mellower and thoughtful pieces as well. They even throw in a cover of Nirvana's "Silver".