My brother was in a doo-wop group back in the late '50s. They were street singers (including Rico Petrocelli who would later go on to play major league baseball for the Boston Red Sox) and they'd "perform" on the boardwalk in Coney Island on Saturday nights. They weren't too bad from what I remember but their biggest mistake was performing right before another group who was better. That other group later gained fame as The Tokens ("The Lion Sleeps Tonight").