Nusrat Fateh Ali Khan (born Pervez Fateh Ali Khan; 13 October 1948 – 16 August 1997), was a Pakistani vocalist, musician, composer and music director primarily a singer of qawwali, a form of Sufi devotional music. He is considered to be the greatest Sufi singer in the Punjabi and Urdu language, and World's greatest qawwali singer ever; he is often referred to as "Shahenshah-e-Qawwali" (the King of Kings of Qawwali). He was described as the 4th greatest singer of all time by "LA Weekly" in 2016. He was known for his vocal abilities and could perform at a high level of intensity for several hours. He belonged to the Qawwal Bacchon Gharana (Delhi gharana) extending the 600-year old qawwali tradition of his family, Khan is widely credited with introducing qawwali music to international audiences.