The track is characterized by its "breezy, sentimental" vibe and "bubbly pop" production.

: The lyrics describe the feeling of being haunted by memories of a past lover that "take up every corner" of the mind. 📈 Chart Performance & Milestones

: The song is famous for its audio panning , where vocals literally bounce between the left and right speakers. Puth explicitly recommended listeners use headphones to experience the "brain-tickling" effect of the harmonies.