acapella song

Barbershop music. collegiate a cappella. puirt à beul. Music performed a cappella, less commonly a capella, [1] ( / ˌɑː kəˈpɛlə /, UK also / ˌæ -/, Italian: [a kkapˈpɛlla]; [2] lit. 'in the style of the chapel') is music performed by a singer or a singing group without instrumental accompaniment. qatar world cup song