Teamwork! Cheeseburger song
I bought my nephew a shirt from Target with a cheeseburger on a trampoline (www.flickr.com/photos/laserbread/4112747817/) and he's been loving talking over the ingredient list. So he and uncle Ryan picked up the ukulele and wrote a song about it.
They even practiced their teamwork with Kidlet strumming, while Uncle Ryan plays the chords. :)