What is the best company Slogan or Jingle you have ever heard?

Marketing slogans or jingles can really get stuck in your head. I still remember a jingle an auto dealer had from when I was a kid. You would have to be from the Bay Area of California to have heard it but all these years later there it is in my conscious available for immediate recall. Also, since my youngest is two years old, I get Sesame Street songs stuck in my head and start humming them around my 13 year old and he gets them stuck in his head…....not so cool for a 13 year old boy to be around his friends singing ‘Elmo’s song’.