You should probably go listen to the iTunes fest version and after that the album version.
There are some very noticeable differences, IMO...
I just listened to them both and the album version is by far better. The only difference is she starts with the "chorus" and that the live version sounds a little messy or played at a faster pace
The only difference is she starts with the "chorus" and that the live version sounds a little messy or played at a faster pace 