Disney Cruise Line ships are famous for their horns, which play the melody of When You Wish Upon a Star instead of a standard ship blast. The song comes from Disney's Pinocchio, and the horn has become a signature sound of leaving port, heard by passengers on deck and in countless holiday videos. Clips of the horn spread through cruise vlogs and social media, where fans recognise it instantly. It remains popular because it combines a real maritime signal with one of Disney's most nostalgic tunes.