Mohammad-Reza Shajarian
Mohammad-Reza Shajarian (23 September 1940 – 8 October 2020) was an Iranian vocalist and master of Persian traditional music. He is widely considered as one of the greatest Iranian artists of all time. He was also known for his skills in Persian calligraphy and humanitarian activities. He died of a heart attack on October 8, 2020, in Tehran, Iran.