 Vernon was sampled on another song from the album , " Lost in the World " and appears on vocals on " Monster " . While there during recording sessions , he had reportedly recorded 10 tracks . He watched Minaj record her verse , and he too , expressed admiration for Minaj 's performance on the song , however he noted that initially he had no idea who she was . Vernon described the process as highly artistic , stating that the fourteen @-@ hour day recording schedule allowed for a lot of fun and creativity . West , talking about recording the song with Vernon , stated that he was " similar to me , where he just does shit just so people would be like , ' Oh shit , how did you do that ? How did that happen ? ' He 's just a really cool guy to be around . ” 
