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
World music / Ethnic fusion / Global fusion can also blend specific indigenous sounds with more blatant elements of Western pop. Good examples are Paul Simon's album "Graceland", on which South African Mbaqanga music is heard, Peter Gabriel's work with Pakistani Sufi singer, Nusrat Fateh Ali Khan, the Deep Forest project, in which vocal loops from West Africa are blended with Western, contemporary rhythmic textures and harmony structure, and the work of Mango, who combined pop and rock music with world elements. More recent bands who exhibit experimentation with World music Hybrid Forms include Vampire Weekend, The Very Best, Island Cassettes &