I love old disney songs! Well.....let's see.
I'll make a man out of you, Mulan.
A girl worth fighting for, Mulan
Under the sea, The little mermaid
Part of your world, little mermaid
Circle of life, Lion King
Colors of the wind, Pocahontas
Also, some newer ones.
Tangled, When will my life begin
Tangled, I've got a dream
Tangled, I see the light
The princess and the frog, Friends on the other side
The princess and the frog, Dig a little deeper
Let it grow, The Lorax (not sure if it's a disney movie though.)