Children's Songs

I've really enjoyed the two Newbie Lessons that use children's songs to teach vocabulary:  the "Colors Song," and the "Hair and Shoulders, Knees and Feet Song."  I've done a search for other lessons that also use such songs, but haven't come across them yet.  I would love to find more of these children's songs; they're easy to remember and would be a good way to interface with 'little Chinese friends.'