Frank Foster sings with a commanding voice, and on gritty country anthems like “Blue Collar Boys,” he's not afraid to let it resound nearly unaccompanied, bellowing lyrics about working-class pride over nothing but a pounding, arena-ready drum beat. Otherwise, this northern Louisiana singer prefers a sound that adds a little bit of twang to the gritty guitars of ‘80s rock. On “Amen,” from 2012, he describes the pleasures of rural life over a sentimental groove that even includes some organ. “Something Bout Being Free” shouts out John Mellencamp and pulses with handclaps worthy of the elder artist himself.