Nicki Minaj the rapper / former American Idol judge goes by an alter ego of Roman Zolanski. She claims that Roman is evil and overcomes her. In the clip below Nicki describes how she feels she is possessed by Roman:
Nicki is not the 1st entertainer to claim to have an evil alter ego. Beyonce has Sasha Fierce, Eminem has Slim Shady etc. All which are evil opposites and more devious/vile than their normal self.
Roman Zolanski is an obvious play on Roman Polanski the Polish film director. He famously directed the movie Rosemary's Baby. He is a fugitive of the US Gov. after being convicted of raping a 13 year old girl in 1977. He has been living in France as a fugitive for over 30 years. Interesting person to make your alter ego after, no?