About Hayedeh Hayedeh (Persian: هایده), born Masoumeh Dadehbala (Persian: معصومه دده بالا), (April 10, 1942 – January 20, 1990) was a legendary Persian Pop and classical singer and diva with a contralto vocal range. In a career spanning more than two decades, she had countless number of hits and captured the hearts of millions around the world. Two decades after her death, Hayedeh is considered one of the most influential and iconic Persian vocalists of all time and is still recognized as one of the Iran's most famous and distinguished singers of the 20th century.