| a style of small-group vocal harmonizing, commercialized as a type of so-called street singing in the 1950s, in which words and nonsense syllables are chanted in rhythmic harmony to support the stylized melody of the lead singer. |

doo-wop
style of rhythm-and-blues and rock-and-roll vocal music popular in the 1950s and '60s. The structure of doo-wop music generally featured a tenor lead vocalist singing the melody of the song with a trio or quartet singing background harmony. The term doo-wop is derived from the sounds made by the group as they provided harmonic background for the lead singer.
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