I cover Pat Benatar's "Love is a Battlefield" using a custom-mapped Tyros2 and Oxygen 25 to build up loops of drum samples, keyboard patches, synths, and other budget sounds. The vocals have a stock vocoder on them and everything is played live using Ableton to loop straight into Pro Tools and mixed afterwards.
It takes about 1:20 to build up the loop so skip to there if you'd like.
Thanks Jenn for suggesting this song! It was really fun to cover.