Whether you sing or only wish you could, the VoiceJam A Cappella Festival is music to the ears as it returns in person this year to the Walton Arts Center in Fayetteville. The “aca-awesome” tradition was virtual last year due to the pandemic, but on April 9, the day will be filled with workshops by professional a cappella performers before competitors from across the country flex their moves and intricate vocal harmonies on the Baum Walker stage.