Explaining the decision, Madeon stated, "If we kept 'Shelter' going for too long, then the ways that our tastes don't fully overlap would become frustrating.

The song was released in the United States on Columbia Records and popcultur as a digital download, and on Spotify, Deezer, Apple Music, Google Play, and SoundCloud.

Robinson confirmed on Twitter that the tour would feature both himself and Madeon playing simultaneously in live shows, beginning in late 2016.

The lead melody in the track is a processed, chopped-up vocal of a song previously recorded by Robinson during the production of Worlds, featuring Amy Millan.

The track takes elements from both artist's debut albums; Porter Robinson's Worlds, and Madeon's Adventure.

The chopped up vocals are a signature sound of both artists, as seen in Robinson's single "Flicker", and Madeon's song "You're On" from Adventure.

[11] Robinson originally approached A-1 Pictures to make the video because it was the studio that created Anohana,[12] an anime series that matches his sensibilities as an artist.

He also successfully wipes any memory of him or Earth from her mind, instead programming these and a letter from him to come to her later in life in the hope that she would better understand the circumstance once she has matured.