Danny Elfman: Danny Elfman. Music Department: The Nightmare Before Christmas. As Danny Elfman was growing up in the Los Angeles area, he was largely unaware of his talent for composing. It wasn't until the early 1970s that Danny and his older brother Richard Elfman started a musical troupe while in Paris; the group "Mystic Knights of Oingo-Boingo" was created for Richard's directorial debut, Forbidden Zone (1980) (now considered a cult classic by...