Persian singers that had duet with popular international singers in the world

 Hassan Sattar ( born 19 November 1949) is an Iranian Pop-tenor, Oratorio singer with specialization in both Persian pop and classical music. He had gained fame before the Islamic Revolution and became Pahlavi Royal Family court singer up until the political upheavals of the late 1970s. He left Iran in 1978 and has taken residence in the United States since then.