Music executive, author, professor, lecturer, public speaker, entrepreneur, artist manager, and founder of Music World Entertainment would be the words used to sum up the professional career of Mathew Knowles, Ph.D. Based out of Houston, Music World is one of the world's leading music and entertainment conglomerates, with record sales exceeding 450 million worldwide, having worked with Chaka Khan, Earth Wind & Fire, The O'Jays, Destiny's Child, Solange, and Beyonce?, just to name a few.