Mohammad Reza Shajarian

Mohammad-Rezā Shajariān (Persian: محمد رضا شجريان) (born September 23, 1940 in Mash'had, Iran) is a legendary and critically acclaimed persian traditional singer, composer and Ostad (master) of Persian music. He has been called "Iran's greatest living master of persian classical music". In Persian classical Dastgah music, singing is the most difficult art to master and Shajarian is the embodiment of the perfect singer and a major source of inspiration. Shajarian is also known for his skills in Persian calligraphy, and humanitarian activities.