Gaga seems too deep.
Katy seems two faced.
Britney would seem dead, probably forget she's friends with me.
Rihanna seems mouthy and perhaps always stinking of weed.
Katy, she comes off as too girly in a childish way, she doesn't seem intellectual enough
Beyonce and Britney are mums and seem to be boring personalities/in a different stage of life
The other girls seem like fun to me and like you'd be able to have a good conversation with them as well