Here is a song from Genki English that fits the vocabulary in the lesson. The teacher is an ESL teacher in Japan and he sells his materials, so you can't find the actual song for free online. I show the demo to my students so they can an idea of what the song is supposed to sound like, then I show them the video of the children dancing to it, while my own students sing. There is another video of (I assume) ESL teachers in Africa learning the song and dancing to it as well.
Attached are the lyrics and links to the videos. Enjoy!