The song's chorus was taken verbatim from Zitron's father, while the pre-chorus derives from the songwriters' discovery of young love, inspiring the lyrics "Upon a hill across the blue lake/ That’s where I had my first heartbreak."

Ingrosso would later contact the songwriters to help work on what would later become "Save the World", which was released over a year prior to "Don't You Worry Child".

The supergroup then started to become embroiled in a long production process that "revealed personal tensions" as depicted in their 2014 documentary Leave the World Behind.

[4] The song was announced during the Swedish House Mafia's tour of Australia while they played at Future Music Festival 2012.

[6] In the United States, the song became Swedish House Mafia's biggest hit, peaking at number 6 on the Billboard Hot 100, making it their first and only top ten single.

[8] A music video for the song was released alongside the single, filmed on location at the group's final British performance on 14 July 2012 at the National Bowl in Milton Keynes.