[1] The song was released as a digital download in the United Kingdom on 16 September 2016 through Island Records.

The song has peaked at number 7 on the UK Singles Chart, and has also reached the top 10 in both Ireland and Sweden.

The song was written by Cooper, Jon Hume, Alex Bunker and Mr Hudson.

In 2018, Irish recording artist Nadine Coyle released a cover of "September Song".

The cover, the third track from Coyle's Nadine EP, was released as a digital download on 9 March 2018 by Virgin EMI Records.