Best known for his dark, pessimistic cuts, it was Devlin's mother who persuaded him to record a lighter tune for a change. He recalled to The Observer February 3, 2013: "She said, 'Cheer up, make a happy song.' Thank God she did, because 'London City' was my attempt at a happy song and it got me signed - so maybe I should cut her in on my deal." (laughs) "Anyway, I just find it easier to address darker subjects."
The track features a sample from Japanese J-Pop singer Hikaru Utada's tune "Passion ", which was used as the theme song for the video game Kingdom Hearts II. Her song peaked at #4 on the singles chart in Japan.