When Flack was nine, she started taking an interest in playing the piano, and during her early teens, Flack so excelled at classical piano that Howard University awarded her a full music scholarship. By age 15, she entered Howard University, making her one of the youngest students ever to enroll there. She eventually changed her major from piano to voice, and became an assistant conductor of the university choir. Her direction of a production of "Aida" received a standing ovation from the Howard University faculty. Flack is a member of Delta Sigma Theta sorority and was made an honorary member of Tau Beta Sigma by the Eta Delta Chapter at Howard University for her outstanding work in promoting music education.