The singer, pianist and four-time Grammy winner had two other No. 1 hits with "The First Time Ever I Saw Your Face" and "Feel Like Makin' Love."

It was a guitar-based folk song,” Lieberman, 73, said about the 1971 song that Flack recorded in January 1973. "My version was a small folk song."Flack won two Grammys for "Killing Me Softly with His Song": record of the year and best pop vocal performance,

Roberta Flack did not write Killing Me Softly. There is some dispute about who did. Two music industry veterans were involved: composer Charles Fox (who also wrote a lot of TV theme songs, including The Love Boat) and lyricist Norman Gimbel.