Tyler is at the point in his career where he can easily get guest features from some of the biggest names in music, and that's exactly what he does on IGOR. There are assists from Kanye West, Playboi Carti, Pharrell Williams, Lil Uzi Vert, and more. But Tyler uses them all very subtly. Uzi's background vocals are barely noticeable on "Igor's Theme," and Kanye's voice is distorted nearly beyond recognition on "Puppet." Tyler layered vocal effects over his famous friends and subtly snuck them into the fold on IGOR, avoiding the temptation to include recognizable guest stars at the cost of distracting from the album's core identity.