Former Celtic Woman vocalist Chloe Agnew and friends will perform a show of Irish music with the Atlanta Pops Orchestra on St. Patrick’s Day at NPAC. Now in their 72nd year of touring, the Atlanta Pops Orchestra is teaming up with former Celtic Woman vocalist Chloe Agnew for an evening of music at the Niswonger Performing Arts Center on St. Patrick’s Day, at 7:30 p.m. Friday, March 17. The Atlanta Pops Orchestra is best known for entertaining audiences worldwide with a diverse repertoire of arrangements from movies, Broadway shows and popular tunes.