Jus2's song "Long Black" is about the addiction and longing for that one special person who brings energy and excitement into everyday life. The lyrics depict the narrator's obsession with their "coffee" or their significant other who gives them strength and comfort, particularly during difficult times. The song's title "Long Black" refers to a type of coffee drink, which extends the metaphor for the narrator's addiction and desire for their significant other. The upbeat track has a catchy chorus that expresses the narrator's inability to resist their lover and their hope that they will always be a constant presence in their life. Overall, "Long Black" is a fun and catchy love song that highlights the power of human connection and the importance of having someone to lean on during challenging times.