Chapi-Chapo (1974)

A French stop-motion animated series by the Italian-French creator duo of Italo Bettiol and Stephano Lonati. The series features two similarly-named characters who are wearing oversized hats and matching outfits. Chapo is a boy and always dresses in blue, Chapi is a girl and always dresses in red. Both their names are puns based on the French term "chapeaux" ("hats"). The protagonists perform a dance at the end of each episode.