Music for Kids

I want to start doing pre-school like songs for the kids I watch so I went to the library to get some music CDs for us to preview before I buy any. Thank goodness I did. There is a song called "I am my own grandpa". It's a very strange song to say the least. I want fun songs that can also teach the kiddos like, 5 little duck went out to play and Days of the week (sung like the Adam's family theme song) Where does one find CUTE preschool songs. And and all suggestions welcome