Although Clements and Musker had originally intended to hire animator Glen Keane to animate Ursula due to his history of animating Disney villains, Keane specifically requested that he be allowed to animate Ariel after hearing Benson sing "Part of Your World" for the first time. Captivated by her performance, he decided to make the scene his most important assignment, volunteering to animate the entire "Part of Your World" musical sequence himself and becoming its lead animator. Animating one particular scene to appear as though the camera is rotating around Ariel while she sings "Look at this trove, treasures untold. How many wonders can one cavern hold?" was particularly challenging for the animators to perfect without the aid of computer animation, taking them considerably longer to complete. Keane described the song as the moment "the audience starts thinking of Ariel as this real, living thing. A girl who's dreaming of something more. And since so many of us feel just like that ... that's when the audience falls in love with this character."