Stevie Wonder, the Reverend Al Sharpton and the Nebulous String Quartet from Berklee College of Music will help celebrate the life and legacy of Roberta Flack at a memorial Monday in New York City. Flack was a Grammy-winning singer and pianist whose songs “The First Time Ever I Saw Your Face" and “Killing Me Softly with His Song"

The music world gathered at New York’s Abyssinian Baptist Church to mourn the loss of genre legend Roberta Flack. The "Killing Me Softly" singer's celebration of life Monday afternoon featured a public memorial service with pre-planned performances from friend and fellow R&B icon Stevie Wonder and a surprise appearance from Lauryn Hill and Wyclef Jean of the Fugees,