Del McCoury is one of the youngest old-timers in bluegrass. His raw, soulful singing harks back to the days when the music was as rebellious in its own way as ’77-era punk. In this era of Jazzercise-ready “newgrass” bands, only fellow hardcore traditionalist Larry Sparks taps as deeply into bluegrass’s Appalachian roots as does McCoury. Four decades into his career, McCoury is finally getting the recognition he deserves—one of his recent Rounder albums even garnered a Grammy nomination. The Del McCoury Band (pictured) performs as part of the “Rounder 25th Anniversary Bluegrass Tour,” a traveling show of bluegrass veterans featuring J.D. Crowe & the New South, Laurie Lewis, and Grant Street at 8 p.m. at the Birchmere, 3901 Mount Vernon Ave., Alexandria. $15. (703) 549-5919. (Eddie Dean)