I was recently telling another parent about how much Rosie has enjoyed the work of Laurie Berkner, so I was just reviewing some of her videos to pass a link to said parent. This song is so simple, yet so beautiful and fun. (Song starts at about 30 seconds on the video).

One Seed,
Two hands,
Dig a Hole;
Start to Plant.

Watch it Grow.
Pass it Down.
One Earth
Spins Around.