The song came about in a period when
Beth Hirsch and Air members
Nicolas Godin and
Jean-Benoît Dunckel all resided in the French district of
Montmartre. Hirsch had gone to record in the house of a producer who also lived in the neighborhood. In the house, Godin was sitting on a couch, waiting to meet her. Having heard a demo of Hirsch's, he invited her to record some tracks for
Moon Safari. Following this invitation, Hirsch wrote the lyrics and melody of "All I Need". At the request of the band, she went on to compose another track for the album, "You Make It Easy". Speaking about Air's decision to work with Hirsch, Jean-Benoît Dunckel told
Stereogum: "[S]he had a very folk sound because she was used to playing acoustic guitar and singing. We liked that American attitude a lot, so when we met her we fused the track with her voice. That was perfect, because the song was really mellow. We wanted a conclusion at the end that was mellow and a little bit dark — melancholic. In the song, she talks about the planets and being behind the sun — the fact that you float around the planets — and we talked about that for Moon Safari a lot." ==Writing and composition==