Elfman also adds his own vocals into compositions in much the same way he mixes his percussion and guitar performances into orchestral arrangements. Prominent use can be heard in the scores for "To Die For" (sung with director Gus Van Sant, credited to "Little Gus and the Suzettes"), "Silver Linings Playbook", and his music for the Hong Kong Disneyland ride Mystic Manor. He provided the singing voice for characters in "The Nightmare Before Christmas" and "Corpse Bride" in addition to composing the scores and songs"," and can be heard singing the "Day-O" call in the style of Harry Belafonte's "Banana Boat Song" in the first bars of the "Beetlejuice" main title.