Gloria Estefan is a penguin character who first appeared on The Muppets in the episode "Swine Song." She is a baby penguin that Miss Piggy smuggles from her vacation in Argentina. Gloria Estefan's gender is unclear as Piggy uses male pronouns, while Uncle Deadly uses female pronouns in "Swine Song." In a promo for "Got Silk?," Uncle Deadly discusses Gloria Estefan and uses male pronouns. The penguin is named Gloria Estefan because it's the first Spanish name Piggy could think of.