I think the Melbourne video was completely in sync...Emanuel Valeri was singing the lyrics to Fever, and his lips were forming the words on time. BTW If you have a lot of videos that are out of sync, you might like to try getting VLC. It's a media player that lets you delay (or un-delay, i.e. move-forward) audio alone by 50 millisecond steps (that's a twentieth of a second)...I find it very useful a lot of the time. ETA: It's completely free.