Charming French vocalist Jil Aigrot, who provided the singing voice for Edith Piaf in the film La Vie En Rose and specializes in chanson francaise, returns to GWU's Lisner after a show two years ago that was part of her American debut. Highly, highly recommended. Tonight, Saturday, March 26, at 8 p.m. Lisner Auditorium, The George Washington University, 730 21st St. NW. Tickets are $25 to $45. Call 202-994-6800 or visit lisner.org.