123Movies. Mickey, Minnie, Donald, Goofy, and the Fun Song Kids head to the circus to participate in a behind-the-scenes tour of the greatest Show on Earth, the Ringling Bros. and Banum and Bailey Circus. Songs include: "Be a Clown", "Join the Circus", "The Man on the Flying Trapeze", "Upside Down", and 9 more fun-filled songs!