 Ross had the concept of the song explained to him by West , which according to Ross , blew him away in presentation . West was so impressed by Ross that he invited him back to his studio during the final stages of the album , where he also appeared on " Devil in a New Dress " . While Ross was there , both Jay @-@ Z and Minaj were recording their verses . Ross expressed his admiration for Minaj , who impressed him during the recording . He stated that what he had observed had earned him respect for Minaj , who called the recording process a " moment of history " . 
