The Chamber began the Prune Festival in the late 1970s, sponsored by Sunsweet, at the Pruneyard and the Community Center field. It had crafts, food, music and, in the 1980s, a baking contest in which every entry had to use prunes.
Its mascot, Super Prune, was a magenta prune in costume. When prunes were rebranded as dried plums in 2001, the Chamber chose a Mardi Gras theme instead, and the festival became Boogie on the Bayou.