Mmmm… chocolate. This next one has been stuck in people’s heads for decades. You still see Kit Kat Bar commercials all over TV and if someone right now said “break me off a piece of that” you KNOW what to answer next.
I didn’t even know that the jingle has been used for this long! Check out a more recent commercial. They don’t actually sing the song but don’t need to since it’s already been sealed tight in your memory for the rest of time.