“Sunshine Superman” was released in the US on July 1966 on Epic Records. The lyrics and the timing made it an anthem for the summer and it reached the top of the Hot 100. In the UK, the song’s release on Epic was delayed because of a dispute between Epic and Pye Records, Donovan’s previous record label, on which the song had already been released; the Epic version was released in December of that year. It proved so popular that it became the title track for his third album. The flip side on both the Epic and Pye singles was “The Trip.” Jimmy Page and John Paul Jones, later of Led Zeppelin, play on the track.