Chattanooga Ballet will present its spring concert, featuring "Paquita," first staged by the Paris Opera Ballet in 1846, in performances at 8 p.m. today and at 2 and 8 p.m. Saturday in the UTC Fine Arts Center, 752 Vine St. The company will present ballet and modern dance, including new works by choreographers Angela Sweet and Joellen Wojtowicz. Tickets are $15 and $12 for the evening performances, $10 for the matinee. To reserve tickets, call the box office at 425-4269. For more information, call 265-0617.