Couple things:
OMG SOMEONE OUTSIDE JAPAN KNOWS AYUMI HAMASAKI
Alicia and Beyoncé seems pretty friendly to me. Rihanna, not sure.
Taylor Swift doesn't look unhealthy to me.
Keri Hilson doesn't strike me as a desperate wannabe (but Ciara does!).
$20 says Kevin Jonas is in a sexless marriage.
Madonna FTW
Gaga = not a plastic. So, in short, this list kinda sucks. Besides, Heathers >>>>>>>>> Mean Girls.