The song was released on 8 June 2018 as the third single from Ruel's debut extended play, Ready (2018).

Upon release, Ruel said “I wrote "Younger" at my AirBNB in Los Angeles with my mate Sarah Aarons.

We were talking about how friends part ways over time because of different interests or family life and I really liked that concept for a song.

I definitely relate to this story personally and I feel like most people have gone through this kind of scenario too.”[3] The music video for "Younger" was released on 2 August 2018 and is a short film directed by visual artist and three-time collaborator Grey Ghost.

It depicts a friendship on the rocks that takes a turn for the worst after a fateful physical altercation.