52th L.A. County Holiday Celebration A wealth of holiday music and dance awaits the public during an extravaganza featuring contemporary and traditional performances. Twenty-four groups reflecting L.A.'s diverse cultural landscape have been selected to present music as diverse as hip-hop and hand bells. The show is free (that includes parking) and will be broadcast live in HD on KCET, on the radio at 90.7 KPFK, and on the Web at kcet.org. Dorothy Chandler Pavilion, 135 N. Grand Ave. 3-6 p.m. Free. (213) 972-3099.