Dionne Warwick, Jennifer Hudson, Rev. Al Sharpton, Kelly Rowland and more are mourning the loss of the Grammy winning singer Roberta Flack.

Ms. Lauryn Hill paid tribute to Roberta Flack on social media, sharing with her audience the influence the late singer had on her artistry. In her carousel upload to Instagram on Monday night (Feb. 24), the 49-year-old shared multiple images of Flack and her albums, and penned a lengthy caption honoring her “delicate power.”

Roberta Flack has died at the age of 88. Known for hits like Killing Me Softly With His Song and The First Time I Ever Saw Your Face, the legendary R&B singer passed away surrounded by her family at her home on Monday, according to a statement issued by her publicist, Elaine Schock.