Mighty strong pets

One of G's favorite books is Doggies by Sandra Boynton. But the irony is that she "doesn't like ruffies." She also doesn't like cats. So one day after reading the book I said "Gwyn, you don't like dogs or cats, what kind of pets do you like?"
"umm, I like..."
"you like fish, right?"
at this point she starts counting her fingers
"I like fish, I like Caleb, umm.."
Now I'm thinking, let's get back to animals. "You like bunnies."
"I like bunnies. I like fish, and Caleb, and bunnies, and Gio."

Now Miriam just came to me after opening the cedar chest and finding all the things I stash in there.
One of which is Jesse's eagle scout pin. The case had been squished so she brought it to me.
"What is it mom? Can you open it? You have to use your might and strength!"

Could someone tell me the primary song she learned that phrase from. I almost peed my pants laughing.