
What made me think of this is that since it's the holiday season, I keep hearing "Good King Wenceslas" (sample), in commericals, on TV shows, at the mall, just about everywhere. But because of one particularly effective ad campaign many years ago, the song still markets a soft drink to me, no matter what the current use of the song is trying to hawk. Whenever I hear that song, I don't hear the lyrics of the Christmas carol in my head, I hear these: "Sprite makes better holidays, lymon is the reason..."
Another song that has been usurped in my mind by a corporate marketeer is "Fur Elise" (sample), a classical piano piece by Beethoven. In the 80's, there was a commercial which featured a girl at a piano recital. She was playing "Fur Elise", but in her mind, she was singing to it, anticipating a reward trip to McDonalds, starting out with something like, "I wish I had a chocolate shake..." and then she gets to a part about french fries, and sings, "and not give any, to my dumb brother." At that moment, the boy is in the audience fidgeting and making faces at her.

Interesting that all of these examples feature music. The jingle must be a powerful marketing tool.
What are some examples of marketing that has done the best job on you over the years?