The Poompa Boompa Quartet is a group of four Poompa Boompas who sing songs in the manner of a Barbershop Quartet at Charlie Chunka Chocolate Inc. They are described by Charlie Chunka to be the musical geniuses of the factory, and have written most songs that the workers of the factory sing, including the ones that Mr. Chunka sings himself. They also seem to sing everything they say.