Let's go for a bit of innocence in this list by naming the top 30 Childrens Rhymes/Songs of All Time.
http://www.ranker.com/list/top-30-children_s-rhymes-and-songs-of-all-time/junior53,
Three Blind Mice
Itsy Bitsy Spider
Star Light Star Bright
John Jacob Jingleheimer Schmidt
Puff the Magic Dragon
Jack and Jill
One, Two, Buckle My Shoe
Hickory Dickory Dock
Georgie Porgie
Twinkle Twinkle Little Star