Mystery of the Biggle is a custom Season 4 episode from The Kidsongs Television Show.
Let's take a look at the mystery Biggle! The Kidsongs Kids will work on creating on their own Biggle, but Billy and Ruby decide to look for something. In-studio guest Manuel Uribe tells the Kidsongs Kids to see what happens that fully drawn and colored mystery Biggle that is revealed in our secret from Biggleland.
- "If You're Happy and You Know It" (A Day at the Circus)
- "Whistle While You Work" (A Day at Camp)
- "Rodeo Rider" (What I Want to Be)
- "Waltzing Matilda" (I'd Like to Teach the World to Sing)
- "Anything You Can Do" (Ride the Rollercoaster)
- "I Like Trucks" (Cars, Boats, Trains and Planes)
- "A Pirate's Life" (Ride the Rollercoaster) (sung by Billy & Ruby Biggle)
- "Oh, Susanna" (Yankee Doodle Dandy)
- Manuel Uribe (June 11th, 1965-May 26th, 2014) is a guest from this episode, since he was born in Mexico.