On one of my father's visits to our house when the kids were small I played the VHS tape of collected songs (painstakingly captured one song at a time on a handy tape over the course of weeks). He was surprised at what great songs they were, not just baby songs or something he might have imagined.

I think one of the first ones he saw was Pearly White Teeth. "I'm the king of toothsomeness" - such a great line in there, and so many of them, aimed at parents as well as children.