......They all suck. Really, really hard. Not a single one of them is good IMO. Her vocals and hooks are almost uniformly annoying as hell.
Case in point, I found myself wondering for about 10 seconds if hearing "ga, ga, ooh la la" would sort of take me back--I can remember being "taken back" by hearing stupid Spice Girls hits after all these years and stuff like that, so why not this? Well I was dead wrong, that song blows.
I watched that old footage of her singing the Sound Of Music stuff too. That was impressive but just because of the amount of work she put in to it--I still hate The Sound Of Music.