Bands are strictly vetted for adherence to Islamic morals, though there is a considerable underground scene of bands who do not have the all-important official permit. Western music is strictly censored.

In 2004, British rock band Queen became the first to be given the official seal of approval with the release of a greatest hits album. The legendary group's frontman Freddie Mercury was of Persian descent.

http://www.middle-east-online.com/english/?id=25506