Hâyedeh , born Ma’sumeh Dadehbâlâ ( 942 – 1990), was an Iranian classical and pop music vocalist with a contralto vocal range. She was well known for her wide range of voice. She was active for more than two decades, and remains one of the most popular singers of Iran.On 24 January 1990, Hayedeh was buried at the Westwood Village Memorial Park Cemetery in Los Angeles, California. She had been recording an album shortly before her death and was due to finish recording it after she returned from her concert in San Francisco.