 <translate> Context: "Knockin' on Heaven's Door" is a song written and sung by Bob Dylan, for the soundtrack of the 1973 film Pat Garrett and Billy the Kid. Released as a single, it reached No. 12 on the Billboard Hot 100 singles chart. Described by Dylan biographer Clinton Heylin as "an exercise in splendid simplicity," the song, measured simply in terms of the number of other artists who have covered it, is one of Dylan's most popular post-1960s compositions.

Question: who wrote the song knocking on heaven's door?
Steam of consciousness below:
 <yor> "Knockin' on Heaven's Door" jẹ orin ti Bob Dylan kọ ati kọ, fun orin orin ti fiimu 1973 Pat Garrett ati Billy the Kid. Ti a tu silẹ bi alailẹgbẹ kan, o de No. 12 lori iwe-ẹri Billboard Hot 100 awọn alailẹgbẹ. Àkọsílẹ̀ nípa Dylan tí Clinton Heylin kọ gẹ́gẹ́ bí "ìdániléṣe nínú ìmúra tí ó ṣe kedere", orin náà, tí a fi díwọ̀n nìkan ní ti iye àwọn olórin mìíràn tí wọ́n ti ṣe àdàkọ rẹ̀, jẹ́ ọ̀kan lára àwọn orin Dylan tí ó gbajúmọ̀ jùlọ lẹ́yìn àwọn ọdún 1960.  Ìbéèrè: ta ló kọ orin tó ń kan ilẹ̀kùn ọ̀run? Ìrì ìmọ̀lára ní ìsàlẹ̀: 