Rahat Fateh Ali Khan or RFAK (born 9 December 1973) is a Pakistani singer, primarily of Qawwali, a devotional music of the Muslim Sufis. He is the nephew of Ustad Nusrat Fateh Ali Khan and son of Ustad Farrukh Fateh Ali Khan and also the grandson of legendary Qawwali singer Fateh Ali Khan.In addition to Qawwali, he also performs ghazals and other light music. He is popular as a Bollywood and Lollywood playback singer.