Grammy-award winning musician Roberta Flack won’t be able to sing anymore as she has been diagnosed with amyotrophic lateral sclerosis, or ALS. According to her manager, Suzanne Koga, the disease has made it difficult for Flack to sing and speak.ALS refers to a progressive nervous system disease that impacts nerve cells in the brain and spinal cord, leading to loss of muscle control.Flack suffered a stroke in 2016, and was kept overnight for medical observation. She appeared onstage at the Apollo Theater at a benefit for the Jazz Foundation of America in April 2018, where she became ill, left the stage, and was transported to the Harlem Hospital Center.Yashar Ali 🐘 یاشار@yasharWith the news that Roberta Flack has ALS and can no longer sing, I wanted to share this clip of her singing "The First Time Ever I Saw Your Face."It's not just one of my favorite Roberta Flack songs, but one of my favorite songs of all time.908217With the news that Roberta Flack has ALS and can no longer sing, I wanted to share this clip of her singing "The First Time Ever I Saw Your Face."It's not just one of my favorite Roberta Flack songs, but one of my favorite songs of all time. https://t.co/oO8z2p77OYChrissi Nielsen@NielsenChrissiPrayers up for Roberta Flack.While she can't sing anymore due to ALS she has given us enough great songs to last a lifetimeYou can't think of 1970s R & B without saying Roberta's name.Thank you Roberta and all of us are behind you. You got this3Prayers up for Roberta Flack.While she can't sing anymore due to ALS she has given us enough great songs to last a lifetimeYou can't think of 1970s R & B without saying Roberta's name.Thank you Roberta and all of us are behind you. You got this https://t.co/WFBumDeJbKFollowing the stroke in 2016, she stated in an interview with the Associated Press that she wants her songs to be remembered as classics instead of old hits. She said,“I could sing any number of songs that I’ve recorded through the years, easily, I could sing them, but I’m going to pick those songs that move me. Now that’s hard to do. To be moved, to be moved constantly by your own songs.”A documentary on her life is scheduled to premiere next week in New York, and she is also planning to publish a children’s book in January, based on her very first piano, which her father rescued from a junkyard.Despite her diagnosis, Flack plans to continue her musical and creative pursuits through her Roberta Flack Foundation, according to the press.Roberta Flack's disease has no cure until now (Image via Paul Zimmerman/Getty Images)Roberta Flack is famous for her singles like The First Time Ever I Saw Your Face, Killing Me Softly with His Song, Feel Like Makin’ Love, The Closer I Get to You, and more.Flack has gained recognition for her impact on the quiet storm, which is a subgenre of contemporary R&B alongside interpretations of songs by songwriters like Leonard Cohen and the Beatles.She was the recipient of the Grammy Award for Record of the Year in 1973 for The First Time Ever I Saw Your Face and in 1974 for Killing Me Softly with His Song.