Kanye West thought Nicki Minaj “killed him” on her verse in his song ‘Monster’, according to Amber Rose.The rapper’s ex-girlfriend recalled West telling her how impressed he was by Minaj, after Rose had recommended her for the job.“I put Nicki on ‘Monster,’” Rose said in a recent interview on The Ringer‘s Higher Learning of West’s introduction to Minaj.“He didn’t know who Nicki was back then. I had Nicki pull up to the studio and I put her on ‘Monster.’ She was still coming up and I saw her in the studio and I was like, ‘Oh my god this bitch is fucking talented as hell,’ and then I went back to Kanye and I was like, ‘You need to get this girl Nicki on ‘Monster,’ and he was like, ‘Who? What? No.’”Rose claimed West wanted Minaj’s verse to be removed from the song at one point, because it was too good.