okay, I will walk you through making your own modern Britney, since I am so nice.
1) grab one of the old skins.
2) slap a $25 weave on it
3) apply Carla Niven clothing liberally
4) make it a romance sim
5) go into the game, play her.
6) type "ctrl-shift-C"
7) type "aspirationlevel 0" and hit the enter key
enjoy
this is what you are trolling for, yes?
In a related note, that poor girl needs help. and a straight jacket.