U Know was issued as a promotional pre‑order download for Art Official Age on 1 September 2014, arriving four weeks ahead of the album’s release. The track surfaced publicly only hours earlier when it debuted through Celebuzz, after which it became available both as part of the album pre‑order and as an individual digital purchase. Its release coincided with Whitecaps, which was issued the same day to promote Plectrumelectrum, creating a coordinated preview of both albums. Al