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
Mellow Yellow R&B singer/keyboardist Georgie Fame on his album "The Third Face of Fame". In 1970, a Czech version of the song was issued by Czech singer and actor Václav Neckář on the Supraphon label. In 1999, "Mellow Yellow" was sung by a group of young adults, among whom were then-unknowns Alex Greenwald, Rashida Jones and Jason Thompson, in Gap's "Everybody in Cords" commercial directed by Pedro Romhanyi. The music mix was done by the Dust Brothers. In 2015 the song was covered by Spanish singer Abraham Mateo for the soundtrack and promotion of the film "Minions". In Brazil Michel Teló covered