Yellow Balloon was not on the recording, having been in a recent near-fatal car accident. The week of May 20, 1967, the Yellow Balloon's version placed at #25 on Billboard's Hot 100 chart, while Jan & Dean's version placed at #111. This was due largely to the fact that many disc jockeys around the United States played only the Yellow Balloon version of the song. The B-side was the song played backwards, entitled "Noollab Wolley". However, several radio stations banned the song in fear that the song was about yellow hallucinogenic pills for a drug trip, just like the Donovan song "Mellow
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