Having broken out of the shadow of DC Talk, Audio Adrenaline has truly evolved into a band locked into their own sound, and they shine like the sun on the band's fifth studio album. With Underdog, they maintain their humility through musical discipleship, but that doesn't preclude the band from having fun--their sound is now distilled to an infectious guitar and keyboard-sweetened rock with enough heaviness and soul to temper the tender sentiments rendered. The title cut, fuzzy, rhythmic rock & roll with rough edges, is one that'll get stuck in your head for days. "DC-10," long part of the band's repertoire, makes an appearance here, rockabilly-style. Jennifer Knapp's poignantly rendered guest vocals add just the right touch to the scratch-and-loop-laden treatment of the hymn "It Is Well with My Soul," and "Get Down" is a radio friendly gem that'll have listeners bouncing around like mad. --Paige La Grone