she lipsynces one or 2 songs per concert max.
i don't mind it at all since it's only that amount of songs. she needs to sing on playback sometimes because the performance takes a lot of her strenght and she wouldn't sound very good. + maybe she needs to rest her voice in one song per concert, just so that she could go trough the rest^^
but i really hate when i see all those world-famous american singers singing the whole concerts on playback. it just makes me sick.
ex. Britney Spears on most of her lives, and what i hated the most was when i heard that the old Spice Girls will be doing a reunion tour about a year ago, and it was said by them all that it'd be on playback!!!! i was like why the hell are you even doing a tour if you don't plan to actually sing at all??!! who the hell would like to go to a concert like that anyways, right?
their fans can just listen to their CD's in that case, it'd be the same thing lol
