Ustad Nusrat Fateh Ali Khan, also known as NFAK, was a Pakistani singer, Hindustani classical vocalist, songwriter, multi-instrumentalist, composer, and music director. While primarily being associated with qawwali, a form of Sufi devotional music from Pakistan and India, he belonged to the historic Qawwal Bachchon ka Gharana and was trained in pure classical khayal architecture under his father Ustad Fateh Ali Khan and later uncle Ustad Mubarak Ali Khan and Ustad Salamat Ali Khan. Though widely celebrated for his qawwali performances, his standing as a master of Shastriya Sangeet was validated by the classical community when he received the Hafiz Ali Khan Award in 1997. He ranks as one of the most influential South Asian singers of all time. Widely recognised as the "Shahanshah-e-Qawwali", he has been recognised as one of the 50 Great Voices by NPR and 200 Greatest Singers of All Time by Rolling Stone. The New York Times named Khan the greatest qawwali singer of his generation. while Credited with introducing Qawwali music to international audiences, he was known for his vocal abilities and could perform at a high level of intensity for several hours. From Wikipedia (https://en.wikipedia.org/wiki/Nusrat_...) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)