 The Mills Brothers, who were famous in part because in their vocals they sometimes mimicked instruments, were an additional influence on street vocal harmony groups, who, singing "a cappella" arrangements, used wordless onomatopoeia to mimic musical instruments.For instance, "Count Every Star" by The Ravens (1950) includes vocalizations imitating the "doomph, doomph" plucking of a double bass.The Orioles helped develop the doo-wop sound with their hits "It's Too Soon to Know" (1948) and "Crying in the Chapel" (1953).