I think The Vegas shows are more for a general public , probably with the intention of attract tourists , so its not 100% a fanbase shows, which in my opinion means she should not give that much importance to album tracks and perform most of her hits and recognizable songs.
Baby one more time
(You drive me) Crazy
Oops I did it again
Lucky
Stronger
I'm a slave 4 U
Me against the music
Toxic
Everytime
My Prerogative
Gimme More
Piece of me
Womanizer
Circus
If u seek amy
3
Hold it against me
Till the world ends
I wanna go
need to be performed, the crowd there would want to listen to her catalog of singles.
1) The only album tracks she should perform should be only tracks for the 8th album, she could dedicate the last segment / encore of the show to 5 songs from the last album.
2) and I would also love that she makes some arrangements to her old bubble-gum stuff, for example she could perform an orquestal version of "
Lucky" with violins in the background and everything while she glamourously sings a song about fame.
3) and I agree she should open the show with "
Break the ice"