Disney Fantasia: Music Evolved
Africa - Toto
The entire time I've been playing this game so far, I couldn't help but feel like Toto's 1980's hit Africa would be a wonderful choice for this game.
edited May 2015
EDIT: Whoops, wrong thread, I wanted this for RB3!
Wouldn't make a bad song at all in DFME, to be honest (at least IMO). Though, they seem to be done with DFME content expansion...