A commercial for Kleenex that aired in Japan during the 1980s became the focus of an urban legend. Derek Bassett last year described the legend on his blog Mohora:
So the story is this commercial for Kleenex tissues was shown on Japanese TV back in 1986 or so. It features an actress in a white dress sitting next to a child made up to look like a baby ogre. There is a really creepy song in a foreign language that when researched, is actually an old German folk song with the words “Die, die, everyone is cursed and will be killed.” Soon after the debut of the commercial, alot of people complained that it was creepy, or 気持ち悪い, and it was quickly pulled off the air. Soon after though, accidents started to befall the actors and crew of the commercial, including the child playing the baby ogre dying of sudden organ failure, the actress being committed to a mental institution where she is either still there, or at some point hung herself (depending on the version of the story).
Here's the commercial, which Derek uploaded to YouTube.
The ad is kind of creepy, but as you can hear, the song is not an old German folk song, but rather "It's a fine day" by Jane & Barton. Derek also notes that there were no strange deaths associated with the commercial. The woman in the ad, Keiko Matsuzaka, is still working as an actress.
There was also an "angel version" of the commercial that aired at the same time as the "demon version," and Derek has uploaded this to YouTube as well. (via The Home of Ads)