Used to be a Volkswagen commercial in Germany that had a song that was mostly kinda techno instrumental, and some guy saying "Da da da" here and there. Horribly catchy.
But the guy that used to do the loop thing where I worked (when I was in the AF) used "Baby Elephant Dance". Over and over. Over and over and over.
I couldn't hum it now, but I think that's because my brain burned those synapses in self-defence.
Yep, that was a different commercial. I actually have an MP3 of that song, BTW.
The commercial I mentioned featured the actress who later played Nina Myers in the TV series "24"... would have been the year 2000, I think.