The track is titled "Bye Bye Baby" and originally appeared on the preliminary tracklist for YANDHI. It features rapper and poet Mykki Blanco who opens the track with tongue-in-cheek bars, "Why did Kanye say that? What is Kanye thinkin’?" Then the track segways into a lengthy Kanye verse.
Stemming from the last secular album recorded before his drastic switch to gospel, "Bye Bye Baby" sees "old" Kanye in his element delivering braggadocios, non-PG rhymes. "This beat make me wanna see a big bootie bitch / Have sex, throw it on her like it dootie shit," he raps at one point.
Presumably a first draft of the song, Kanye's verse is delivered raw and unpolished over a frantic beat. You can listen to it here, before it gets taken down.