Hotel California (vocals begin at 2:05)

http://www.dailymotion.com/video/x19...lifornia_music

This could imo make one of them win the show. I can easily picture Casey doing this with his voice and bluesy style and for Didi it would be unpredictable yet amazing.

They might be able to do a good job with this song, but I doubt this one song could tip the scale so much.

Very nice video!

Didi reminds me a little of Rickie Lee Jones, so this might be good:

http://www.youtube.com/watch?v=lg1Ibt4xP7g