"Azadeh" (1968), which was composed by Ali Tajvidi, with lyrics by Rahi Moayeri, was Hayedeh's first official hit and debut also.

In this period Hayedeh worked with several songwriters, such as Fereydoun Khoshnoud, Jahanbakhsh Pazouki, Anoushiravan Rohani and Mohammad Heydari.

Hayedeh's political and nostalgic songs such as "Rouzaye Roshan", "Ghesseyeh Man", "Zendegi" became very popular with the Iranian exile community.

[citation needed] Songwriter who wrote more than 30 of Hayedeh's songs and hits was her best friend Leila Kasra (a.k.a.

[1] On January 20, 1990, the day after a performance at the Casablanca Club, near San Francisco, California, Hayedeh died from a heart attack.

[1] According to Prof. Erik Nakhjavani in Encyclopædia Iranica: "Analogous to Delkash, before her, Hayedeh sang with technical authority and passionate energy.

She could smoothly pass from the upper reaches of her alto voice to the lower, fuller, and darker range of the contralto.

This mixture of strong laryngeal strength and learned vocal technique gave her alto-contralto voice a rare, powerful resonance and texture in the performance of the Avaz.

Tehran-based FARS News Agency (close to the Islamic Revolutionary Guard) cited the documentary as a film on the "Corrupt monarchist singer Hayedeh".

The documentary was released on DVD on 20 January 2010, the 20th anniversary of Hayedeh's death, by "Persian Dutch Network" in Amsterdam.