It's too early for this code cracking

After the 4th rejected song Mommy asks "What song DO you want?"

I want da loose

The Loose??

Da Moose!

The Moose??

I want sing da moose in da car.

HUH? Muttering to myself... sing da moose in da car, sing da moose in da car....

I've got it.... Little Red CaBOOSE!!?

Nathan : Little Red DaMOOSE, yes