Mellow Yellow (album) previously illustrated his infatuation with an ability to define the mid-sixties pop music scene. On "Mellow Yellow" this is still evident in "Sunny South Kensington", "Museum" (originally recorded for the "Sunshine Superman album" and rerecorded for "Mellow Yellow") and the title track, but is also tempered with world-weary observations of that scene ("Young Girl Blues"). The contractual problems that prevented the release of Donovan's music in the UK led him to write such songs as the resigned "Writer in the Sun", where he contemplates the possibility of his own forced retirement from the music industry at the age of 20.
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