The Greatest!! Did we get your attention? The Mills Brothers were sons of John Mills senior who had been a concert singer before retiring to become a barber. Among the pioneers of close harmony singing, they became one of the best known popular groups ever. They began their career in small time vaudeville as 'Four Boys and a Kazoo' until one night they forgot the kazoo! John cupped his hands over his mouth and did a vocal imitation of the forgotten instrument for an enthusiastic audience. Thus began the vocal imitation of the trumpet, the trombone, the tuba, and saxophone. If you let your attention lapse for a moment while you are listening to the brothers you will not believe that these are just four singers and a slight accompanying acoustic guitar. The Greatest!! Did we say that yet?