Who or what would they be?

I could see Madonna being the Godfather Zeus, Bey being the Goddess of Hunt Artemis and P!nk being Hercules. Also Rih as Medusa - I remember seeing some pics where she had that hairstyle or did she have snakes on her head?

What I don't see is Gaga portraying Aphrodite. Hera would suit her better - the Goddess of Marriage, Women & Birth.

The greek mythology is pretty exciting, don't you think?

Beyonce would be Hera
Ariana would be Aphrodite or Persephone

Here we go

Sorry, these never end well.