The "Doublemint Twins" refers to the iconic advertising campaign for Wrigley's Doublemint Gum, which featured identical twin sisters. The campaign began in the 1930s and became famous for its catchy slogan, "Double your pleasure, double your fun." The twins symbolized the idea of doubling enjoyment, making the product memorable and appealing to consumers. Over the years, the Doublemint Twins have become a cultural reference, representing the concept of twins in advertising. The campaign has evolved, but the image of the twins remains a significant part of Wrigley's branding strategy, emphasizing the fun and enjoyment associated with chewing gum.