Get in the holiday spirit by attending the National Symphony Orchestra Holiday Concert, 8:00 p.m., Saturday, December 10, 2005 at the John F. Kennedy Center for the Performing Arts. Two tickets to see this special event. Marvin Hamlisch and a colorful assortment of lively performers present a program of festive songs and time-honored classics, including "O Holy Night," "Sleigh Ride," "White Christmas," and much more. Capture the spirit of the season with this uplifting and joyous holiday concert, featuring a visit from Santa Claus and other special guests.