Pop music sampling (from the 1980s) have also been utilized as methods for the creation and elaboration of pop music. By the early 1980s, the promotion of pop music had been greatly affected by the rise of music television channels like MTV, which "favoured those artists such as Michael Jackson and Madonna who had a strong visual appeal". The latter half of the 20th-century included a large-scale trend in American culture in which the boundaries between art and pop music were increasingly blurred. Between 1950 and 1970, there was a debate of pop versus art. Since then, certain music publications have embraced
Iranian pop music then, several popular Iranian TV channels and radio stations operate outside the country, aired through various satellites. These broadcast companies play an important role in promoting and connecting Iranian pop artists to Iranians living all over the world. In the 1990s, officials of the new government decided to produce and promote a "decent" pop music, in order to compete with the abroad and unofficial sources of Iranian music. Ali Moallem (poet) and Fereydoun Shahbazian (musician) headed a council at the IRIB that supervised the revival of domestic pop music. Shadmehr Aghili was one of the first post-revolutionary Iranian singers who