Search Result for "doo-wop": 
Wordnet 3.0

NOUN (1)

1. a genre (usually a cappella) of Black vocal-harmony music of the 1950s that evolved in New York City from gospel singing; characterized by close four-part harmonies; the name derived from some of the nonsense syllables sung by the backup; 



WordNet (r) 3.0 (2006):

doo-wop
    n 1: a genre (usually a cappella) of Black vocal-harmony music
         of the 1950s that evolved in New York City from gospel
         singing; characterized by close four-part harmonies; the
         name derived from some of the nonsense syllables sung by
         the backup