The musical theater department at Center for Creative Arts has added two performances of the musical "All Shook Up." Encore performances will be presented at 7:30 p.m. Saturday and 3 p.m. Sunday in the school auditorium, 1301 Dallas Road. "All Shook Up" features the music of Elvis Presley presented by students of the performing-arts magnet school. Jason Whitehead is the show's director, and Lindsay Fussell choreographed the musical.Tickets at the door are $10 for adults, $5 for students. For details, contact Don Andrews at 209-5942.