Well, at least one of her personalities is. She admits to having numerous personalities or 'alters'. If you watch some of her previous videos, she is behaving in a very demonic and Satanic way. See below:

Nicki Minaj is famous for utilizing numerous alter egos throughout her career to express different musical styles and personalities. While the exact number varies by source, she has prominently featured over 6-8 main, distinct personas.

Key Alter Egos and Personas:

Roman Zolanski: Perhaps her most famous, aggressive, and wild alter ego, described as a "demon inside" her.

Harajuku Barbie: A long-running, soft-spoken persona representing a playful, pink-themed style.

Martha Zolanski: Roman's British-accented mother.

Cookie: Her very first alter ego, created during childhood to escape reality.

Nicki Lewinsky: An early underground mixtape persona.

Chun-Li: A "bad guy" persona associated with the Queen era.

Others:

• Nicki the Ninja
• Nicki the Boss
• Nicki Teresa
• Point Dexter.

Minaj claims that they allow her to say things the "regular" Nicki cannot.