The Ponca City Concert Series announces accomplished vocal/ piano/violin trio as part of their 2022 - 2023 Concert Season PONCA CITY, Okla. – (March 30, 2023) Empire Trio, formerly known as O Sole Trio, have come together to create a brand-new show, Hooray for Hollywood. Enjoy an evening full of the most beloved songs from the world of film at The Poncan Theatre on Thursday, April 20, 2023 at 7…