For the bassist, see Billy Bass Nelson.
Big Mouth Billy Bass is an animatronic singing prop, representing a largemouth bass, invented in 1998 by Joe Pellettieri of Bass Pro Shops and popular in the early 2000s. The fish is made of latex rubber stretched over a plastic mechanical frame; at first glance it appears to be a mounted game fish. Designed by Gemmy Industries, it turns its head towards a person, facing them, and then wiggles its tail on its trophy plaque and sings kitschy cover songs, such as "Don't Worry, Be Happy", and "Take Me To The River" by Al Green. The singing mechanism was originally activated by a motion sensor and was originally intended to startle a passerby. Eventually a button was added to activate it. Other versions that were produced included a Christmas edition, Fish bones, and even a standing fish with a microphone. The concept was also adapted into a large mounted deer head and a medium sized mounted bear head.