"[Lucy] is so steeped in the history of The Roches, it's just a natural extension [to have her on tour]," Suzzy Roche told Metro Weekly last week, referring to daughter Lucy Wainwright Roche, who will both open for and add fourth-part harmony to the legendary folk trio The Roches at its annual holiday show. "[The show is] sort of a mixture," says Suzzy. "A little bit of holiday [music] -- not too oppressive -- and our regular show as well." Let's hope they don't forget to do "Hammond Song," "Losin' True," and our personal favorite, "Quitting Time." Yes, we're die-hards here. Friday, Dec. 17, at 7:30 p.m. The Birchmere, 3701 Mt. Vernon Ave., Alexandria. Tickets are $35. Call 703-549-7500 or visit birchmere.com.