I don't know where Peter is, so I'm starting the thread.
Here's the spoiler list:
Casey James – Don’t Stop Thinking About Tomorrow – Fleetwood Mac
Lee Dwyze – The Boxer
Tim Urban – Better Days – Goo Goo Dolls
Aaron Kelly – I Believe I Can Fly
Siobhan Magnus – When you Believe – Mariah and Whitney
Michael Lynche – Hero – Alt version?-
Crystal – People Get Ready – started a capella no guitar – weird microphone stand, weird evening gown.
I thought Lee was going to do the one that Tim is doing. Not sure about Casey's choice. Don't think it will do much for him. And, oh Siobhan.