Anheuser-Busch and Molson Coors produce some of the best-selling light beers in the United States — Bud Light, and Miller Lite and Coors Light, respectively — and regularly attack each other with witty ad campaigns. During Super Bowl LIII, Anheuser-Busch unveiled an advertisement campaign focused on the idea that Bud Light is made using rice as opposed to corn syrup. The Bud Light advertisements called attention to Miller Lite and Coors Light’s use of corn syrup as a source of sugar for the fermentation process. In response, Molson Coors advertised that its beer tastes better because of the corn syrup, which is not the same as high-fructose corn syrup used in other consumer products. Molson Coors also filed a lawsuit arguing that Anheuser-Busch violated Section 43 of the Lanham Act “by implying that a product made from corn syrup also contains corn syrup.”