WAfter the most successful advertising campaign Springfield has ever seen, The Krusty the Clown show gets bumped in the ratings by Arthur Crandall, a droll ventriloquist, and Gabbo, his excitable dummy. Gabbo is a huge hit, and Krusty's show is cancelled as a result of falling ratings. Bart and Lisa enlist the help of Krusty's Hollywood pals like Hugh Hefner, Bette Midler, Elizabeth Taylor, the Red Hot Chili Peppers and others to save his show. After an emotional TV special, Krusty's show is brought back for good. No one ever hears from Arthur Crandall or Gabbo again.