You know this song. It's one of my favorite children's songs. It's fun, and it's very adaptable. You can change the adjective (to 'sleepy' for example) and/or the actions ('give a yawn') to make any song you want.
Jan Ormerod has a great adaptation in If You're Happy and You Know It!, illustrated by Lindsey Gardiner. It begins with a little girl singing the familiar refrain. But wait! What if you don't have arms? A puppy doesn't have arms. So the puppy sings, "If you're happy and you know it, wave your tail-swirl, twirl!"
The elephant breaks in to suggest flapping your ears. The gorilla beats his chest. The kangaroo jumps and bumps "boing boing". The theme at the end is to do your own thing to show how happy you are.
I think you can imagine how fun this book will be for a musical time. I've been thinking about music times at home since I watched Dan Zanes' video on YouTube for "All Around the Kitchen". Check it out when you have a free moment.