Ziad Rahbani
In 1978, the trio toured Europe and the Persian Gulf nations, including a concert at the Paris Olympia. As a result of this busy schedule, Assi's medical and mental health began to deteriorate. Assi Rahbani eventually died in 1986, no longer married to Fairuz but due to the influence, his family and Fairuz had in Lebanon the factions in Beirut had a cease-fire allowing the funeral procession to travel from the Muslim side of the city to where Assi would be buried on the Christian side. Fairuz then began to work almost exclusively with Ziad Rahbani, her son on producing her music.