Listen to Knockin' on Heaven's Door (Feat. Dolly Parton) online. Knockin' on Heaven's Door (Feat. Dolly Parton) is an Unknown language song and is sung by Ladysmith Black Mambazo. Knockin' on Heaven's Door (Feat. Dolly Parton), from the album Africa in Harmony: 50th Anniversary Edition, was released in the year 2014. The duration of the song is 5:39. Download Unknown songs online from JioSaavn.