My friend was watching Sleepless in Seatle, Meg Ryan is in her car and listening to the radio. They mentioned Jinggle Bells in reverse but she changed the station before it played. She was curious as to what that would sound like so she looked it up. This is what she came up with. You have to turn up the volume and listen carefuly because it's not clear and pretty muffled. It is pretty weired though and worth listening to. Here's the link.
http://pub.sinuspl.net/flash/Jingle_Bells_Reversed.swf









