Jazz singer Nancy Wilson died Thursday at age 81 after a long illness. The self-proclaimed "song stylist" won three Grammys and had eight top 20 albums on the Billboard 200 just in the 1960s. She was best known for her hit songs "Guess Who I Saw Today" and "(You Don't Know) How Glad I Am."
Below, find reactions from celebrities -- including John Legend, Janelle Monae and Chaka Khan -- to the loss of the influential singer. Some knew her personally, and others admired her from afar.