Mellow Yellow Paul McCartney can be heard as one of the background revellers on this track, but the "quite rightly" whispering answering lines in the chorus is not McCartney but rather Donovan himself. Donovan had a small part in coming up with the lyrics for "Yellow Submarine", and McCartney played bass guitar (uncredited) on portions of Donovan's "Mellow Yellow" album. In 2005, the track was remastered by EMI Records for the "Mellow Yellow" album re-issue. "Mellow Yellow" was covered in 1967 by soul singer Big Maybelle on her album "Got a Brand New Bag". It was also covered in 1968 by British
Heaven and Hell (The Who song) Heaven and Hell (The Who song) "Heaven and Hell" is a song by English rock band The Who written by group bassist John Entwistle. The studio version (originally recorded for an April 1970 BBC session), which appeared on the B-side of the live "Summertime Blues" single, is currently available only on the "Thirty Years of Maximum R&B" boxed set and "Who's Missing", though several live versions of the song exist on official releases. The song was one of many Entwistle B-side singles and one of his live staples. The song's lyrics talk of the places known as heaven and hell.