Roberta Flack, the Grammy-winning soul singer best known for her celebrated interpretations of romantic ballads like "Killing Me Softly With His Song," as well as her professional collaborations and social activism, has died, according to a statement from her publicist. Flack died at home surrounded by her family, Elaine Schock, her publicist, told CNN. Her death followed several years of health challenges, including a diagnosis, revealed publicly in late 2022, of amyotrophic lateral sclerosis, or ALS. The progressive condition, often referred to as Lou Gehrig's disease, made it impossible for Flack to sing, her representatives said at the time.