The 34-year-old rap star features alongside Kanye, Jay Z and Rick Ross on the popular track, and her verse is widely considered to be one of the high points of Nicki's career - but she's revealed she needed to make a lengthy call to Kanye in order for the single to make the cut on his album.
In a lengthy Instagram post, Nicki wrote: ''7 year anniversary of #Monster Kanye called me to tell me Jay put a verse on this song & that he was still deciding if he would put it on his album. Haha. It was like an hour long call where I tried to convince him to let the song stay on his album. He felt this verse would end up being the talk of the album. I said: YOU'RE KANYE WEST!!!! (sic)''
Nicki also gave her fans an insight into how she appeared on the track in the first place.
She recalled: ''I became the first female rapper to perform @ Yankee Stadium on the JAY/Eminem stadium tour. When I saw him, Jay said: 'when u got so nice'? I said: 'I been nice'! Ha! Kanye, thank you for being the genius you are. You always put others first. I fought u every step of the way but it worked out. (He wanted me to add more of that growling monster voice and I felt it was over kill.) He wouldn't give in. In the end, maybe he was right. Ha! (sic)''
Nick said that Kanye's ex-girlfriend Amber Rose also helped to convince the rapper of her talents.
She explained: ''Amber had spoken highly of me to Ye n pushed for him to meet with me. The rest is history. Ye, Jay, Em...All 3 of them helped me in some way. Love (sic)''
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