"It's not winter until you have some Lambells soup."
That's a slogan. If it was a good slogan, you'd hear it and remember
it. Then next time you're at the store shopping for soup, you'll
think of Lambells soup and buy it.
So next time you find yourself humming a tune that you heard or sub-consciously saying the words, stop and think. Don't buy anything you may not want to just because you like the slogan for the product.