https://www.britannica.com/biography/John-Legend
https://www.biography.com/people/john-legend-201302
https://www.notablebiographies.com/newsmakers2/2007-Co-Lh/Legend-John.html
https://www.britannica.com/biography/John-Legend
https://www.biography.com/people/john-legend-201302
https://www.notablebiographies.com/newsmakers2/2007-Co-Lh/Legend-John.html