Singer Roberta Flack, photographed in 1969
Photograph: Jack Robinson/Getty Images

Performing at Ronnie Scott’s, London, in 1972
Photograph: Heritage Images/Getty Images

Roberta Flack and Donny Hathaway perform on a BBC TV show, 1973
Photograph: Michael Putland/Getty Images

Flack at the 1974 Grammy awards, after Killing Me Softly With His Song won record and song of the year. Isaac Hayes, right, looks on
Photograph: Harold Filan/AP

With Michael Jackson in a TV special, 1974
Photograph: ABC Photo Archives/Disney General Entertainment Content/Getty Images

Backstage at the Grammy awards in 1975. From left, Art Garfunkel and Paul Simon, Yoko Ono and John Lennon, and Roberta Flack
Photograph: Tim Boxer/Getty Images

On stage at Park West Auditorium, Chicago, 1981
Photograph: Paul Natkin/Getty Images

With Luther Vandross backstage at Madison Square Garden in New York City, 1982
Photograph: Ebet Roberts/Redferns

Peabo Bryson and Roberta Flack perform together in 1983 on The Tonight Show Starring Johnny Carson
Photograph: Gene Arias/NBCU Photo Bank/Getty Images

With former South African president Nelson Mandela, talking to reporters after their meeting at Mandela’s house in Johannesburg, South Africa, 1999. Flack sang Killing Me Softly With His Song for Mandela during their meeting
Photograph: Themba Hadebe/AP

Performing in Calvia, Mallorca, 2006
Photograph: Dani Cardona/Reuters

Performing at the 2012 Women for Women International Gala, in New York City
Photograph: Shahar Azran/WireImage
