Nicki Minaj has changed her surname on Twitter to "Petty". The 36-year-old rapper announced this week she plans to marry her fiancé Kenneth 'Zoo' Petty within the next 80 days, but it seems she's already taken their romance to the next level on social media, as she's taken on her beau's last name on her Twitter account. On Friday (16.08.19) Nicki changed her display name on Twitter from "Ms. Minaj" ...