The true test of a Gaslight Anthem album can't ' or at least shouldn't ' take place while the listener is staring at a computer screen. The New Jersey-based band makes music for car stereos, plain and simple; its timeless, barreling rock 'n' roll anthems are all about conflating simple tropes (Saturday night, the open road) with disarmingly wise observations on life, death and youth'Beneath the big, galloping fun of American Slang lies a unifying theme about the fleeting nature of youth. "Everybody used to call you Lucky when you were young," Fallon sings in the magnificent "Stay Lucky," taking all of 10 words to sum up a lifetime of compromise and faded hope. American Slang keeps coming back to lost vitality; the album might as well have been titled Hey, Remember When You Were Young? Yeah, That Was a While Ago. As such, it's a perfect companion for those who might be on the verge of, say, their 20th high-school reunion this summer. If you are, it'll give you a perfect excuse to rent a muscle car for the occasion, blast these bold anthems of ambivalence in the parking lot, and revel in what little youth you've got left.