5 Kids Songs That Won't Drive You Crazy

 Three Little Birds by Elizabeth Mitchell (cover)

We're Going To Be Friends by Jack Johnson (The entire Curious George album is wonderful) 

Here Comes the Sun by Rockabye Baby! Lullaby Renditions of the Beatles

It's A Big World by Renee & Jeremy

And The Green Grass Grew All Around by Jewel (on second thought, this one might drive you crazy, simply because it will get hopelessly stuck in your head)

What kid/adult friendly songs do you enjoy?