The biggest a cappella event in the Southeast is coming to Charlotte for one show only June 18. Charlotte HarmonyFest 2016 features mind blowing vocal harmonies from the reigning world champion quartet Instant Classic, singing a cappella music at its absolute finest. Are you a Pitch Perfect fan? How about Pentatonix? Do you watch Glee or The Sing-Off? Ever sing along with Rockapella during Where in the World is Carmen San Diego? Or do you simply enjoy great singing? If any of these gets a "yes" then you have to see this show!