Roots of Bally Sagoo

Ustad Nusrat Fateh Ali Khan, also known by his initials NFAK, was a Pakistani singer, songwriter, multi-instrumentalist, composer, and music director, primarily associated with qawwali, a form of Sufi devotional music from Pakistan and India. 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. 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.