Doo Wop Google Search 

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.