 FAKE: During the final scene, the Peanuts gang gathers around the  little tree and begins to sing "Hark the Herald Angels Sing"  (singing "Loo loo loo"). As everyone takes a breath, Pig Pens head  disappears briefly and Pattys orange dress (shes behind him) "pops  up" to where his head used to be. Older VHS tapes have the mistake,  newer tapes and DVD do not.