She lip sung Angel's Song for At 03-04 but it definitely was not the same track used for Memorial address CD. I'll have to listen but she may have used the same rerecorded track for PCDL. Oh and that youtube link of Angel's Song is completly out of sync with the audio (even in high quality)!! i don't think anyone could lip sync that bad!
EDIT: Wait maybe its just her messing up the lyrics again haha at :53. God I think we just need to wait for the DVd, yes the audio may be redone, but honestly these clips, especially youtube, can be poorly synced at times. Sometimes its in sync, sometimes its not.
...Anyways who gives a care if she did or not, we know she can sing live and she din't lip sync the whole concert.