Former Broadway Dreamgirl, and Helen Hayes Award-winner for her role in Studio Theatre's Caroline…or Change, the timeless, and locally legendary, Julia Nixon appears as part of Signature Theatre's Cabaret in the Ark series. The Sarah Vaughan-inspired singer performs standards including "The Impossible Dream," "Look to the Rainbow" and "I Did It My Way" plus some R&B tunes, even a little jazz. Highly recommended. Now through Saturday, Jan. 15, at 8:30 p.m. Signature Theatre, 4200 Campbell Ave., Arlington. Tickets $34. Call 703-820-9771, or click here.