I remember watching the final of SYTYCD and Amy's final contemporary routine uses this song and I really loved it then.

The re-worked version with Christina is now no. 1 on US iTunes. I thought Christina's vocal really makes the song come alive. Loved it.

http://www.youtube.com/watch?v=xCgv0Eq3dxE

Wow, I am loving Christina's more restrained vocals. Well I've heard her sing like that before but it just goes so well on this song. I now really want her to do a duet with a Leona Lewis, but singing like that. That would be beautiful!!