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
Have You Never Been Mellow (song) 2016, Dutch DJ duo Showtek released a hardstyle song entitled "Mellow" that sampled this song's lyrics with Technoboy and Tuneboy. In 2017, Japanese singer-songwriter Rina Sumioka covered the song in her album "Colors". Juliana Hatfield covered the song on her album "Juliana Hatfield Sings Olivia Newton-John". Have You Never Been Mellow (song) "Have You Never Been Mellow" is a popular song written by John Farrar and recorded by Olivia Newton-John as the title track for her album of the same name. In March 1975, the single became Newton-John's second consecutive number-one hit on the US "Billboard" Hot 100 and also