 "Lovesick" is a vocal version of a previous instrumental track titled "Lovesick Fuck", which was released in his debut EP "Someday Somewhere".Crossan said that "the track originally was about sex and how I was feeling after a particularly empty encounter with a friend told through a kind of twisted-pop, calypso, hip hop dance track".Rachel Aroesti of "The Guardian" called the original instrumental "jazzy" and "tropical".