The Iranian Revolution of 1979 was a decisive turn against Western influences, and a new, theocratic constitution that effectively made Ayatollah Ruhollah Khomeini dictator for life as part of a return to Islamic values. Among these was the banning of almost all Western culture, including most modern music. (With the exception of some music by Queen – the late great Freddie Mercury was of Persian descent, after all.)
Khomeini is gone now, but the bans remain in place.
Triumph of the Swill — Dead Kennedys