OPENS JULY 30VOICES OF ROCKFor a few select nights, Voices of Rock will bring timeless rock music of eras past to the stage. Pacific Amphitheatre, 100 Fair Drive, Costa Mesa, 714-708-1500, pacamp.comAUG. 1 THROUGH 9“THE LIGHTNING THIEF”Percy Jackson is an average teenager who discovers that he is the son of a Greek god. South Coast Repertory, Julianne Argyros Stage, 655 Town Center Drive, Costa Mesa, 714-708-5555, scr.orgScroll to continue. In addition to daily live demonstrations, there will be live music on different stages throughout the festival. For 60 years, the Sawdust Art Festival has served as a home for locals to support the bustling Orange County art scene.