Question: Which Paul McCartney song did Del Davis sing on "Mellow Dubmarine."
Related documents: [0]  [DOC] "A World Without Love" is a song recorded by the English duo Peter and Gordon and released as their first single in February 1964. It was included on the duo's debut album in the UK, and in the US on an album of the same name. The song was written by Paul McCartney and attributed to Lennon–McCartney. The B-side was "If I Were You", written by Peter and Gordon. [END] 
[1]  [DOC] Del Davis is a reggae singer of the 1970s. His cover of "World Without Love" was featured on "Mellow Dubmarine". [END] 
Answer: 
World Without Love
World Without Love