Could Also Be:
The woman she wanted to sign to her label (I forgot her name)
Jhene (Nicki followed her on twitter a few months back randomly)
Beyonce (What everyone has speculated since the dawn of time)
She has said she wanted to make a classic hip-hop album
I think it has to be an 'urban' female.
Ciara is unlikely imo. Idek why but it's not her.
Katy and Taylor are too pop.