Roberta Flack (85) suffers from the nervous disease ALS. The illness made it "impossible to sing and not easy to speak," said a spokesman for the singer, according to media reports.
Amyotrophic lateral sclerosis is a rapidly progressive disease of the central nervous system. The nerve cells that are responsible for moving muscles gradually die off. The astrophysicist Stephen Hawking (1942-2018) also suffered from ALS.
Roberta Flack was the first and, to date, only performer to win the Grammy for Best Recording twice in a row: in 1973 for "The First Time I Ever Saw Your Face" and in 1974 for "Killing Me Softly with His Song".
In 2016, the music teacher suffered a stroke. Two years later, she announced that she would no longer perform live.