dos that rebellious teenagers craved, the street credibility — of rock and roll music; most were performed, and some were written, by black artists not heard in popular mass entertainment markets. Most parents considered the bowdlerized popular cover versions more palatable for the mass audience of parents and their children. Artists targeting the white-majority family audience were more acceptable to programmers at most radio and TV stations. Singer-songwriter Don McLean called the cover version a "racist tool". Many parents in the 1950s - 60s, whether intentionally racist or not, felt deeply threatened by the rapid pace of social change. They had, for the most part, shared entertainment with their parents in ways their children had become reluctant to do. The jukebox and the personal record disc player were still relatively expensive pieces of machinery — and the portable radio a great novelty, allowing truculent teenagers to shut themselves off. Tunes by introducing or "original" niche market artists that became successful on the mass audience hit parade charts are called crossovers as they "crossed over" from the targeted country, jazz or rhythm audience. Also, many songs originally recorded by male artists were rerecorded by female artists, and vice versa. Such a cover version is also sometimes called a cross cover version, male cover, or female cover. Some songs such as "If Only for One Night" were originally recorded by female artists but covered by mo