Question: Riaz ur Rehman Saghar wrote songs for a Pakistani singer who has performed at Albert Hall, and what other prestigious venue?
Sentence (from "Riaz ur Rehman Saghar"): Riaz-Ur-Rehman Saghar (Urdu: ریاض الرحمٰن ساغر‎ , born 1 December 1941, Bathinda, Punjab, British India; died 2 June 2013, at Lahore, Pakistan) was a poet and a film song lyricist active in Pakistani cinema.
Relevant evidence: No