With every stop, the song gained more voices. Moe slunk on board, offering melancholic harmonies and a strategically timed cough. Apu announced each station in rapid-fire Punjabi-tinged staccato, his lilt folding perfectly into the tram’s chorus. Sideshow Bob attempted to join, but his baritone turned every “pararam” into a villainous coda that made toddlers squeal and pigeons drop into a synchronized mid-air wobble.