Joshua's favorite music is the World Mandate cd. He would listen to it 24/7 if we let him, and when it isn't playing, he is singing it. It is pretty incredible to me how quickly he has learned most of the words. (And amusing that he insists he is correct even when he is mixed up on some words.) On another musical note, David now sings the 50 States song while he brushes Joshua's teeth. I never learned this song, and my 3 year-old now knows it better than I do! Aside from some minor, (and some more major), pronunciation issues, he can sing the entire thing!