 Doo-wop was a precursor to many of the African-American musical styles seen today.Having evolved from pop, jazz and blues, doo-wop influenced many of the major rock and roll groups that defined the latter decades of the 20th century, and laid the foundation for many later musical innovations.Doo-wop's influence continued in soul, pop, and rock groups of the 1960s, including The Four Seasons, girl groups, and vocal surf music performers such as the Beach Boys.