This features Hannah from London Grammar—I’d done quite a lot of work on their last album and we became good friends. I had this idea of someone sending their final message from outer space, just before they disappear. It had this sample of a repeated message and then I got Hannah to sing it as it was begging for something a bit more human and less mechanical. Sometimes the music calls out for a full song and other times I do that classic dance music thing of honing in on one phrase and repeating it but changing it slowly over time.