Coca-Cola changes its formula and releases New Coke. The response is overwhelmingly negative, and the original formula is back on the market in less than three months.

Coca-Cola, or Coke, is a cola soft drink manufactured by the Coca-Cola Company. In 2013, Coke products were sold in over 200 countries and territories worldwide, with consumers drinking more than 1.8 billion company beverage servings each day. Coca-Cola ranked No. 94 in the 2024 Fortune 500 list of the largest United States corporations by revenue. Based on Interbrand's "best global brand" study of 2023, Coca-Cola was the world's sixth most valuable brand.

New Coke was the unofficial name of a reformulation of the soft drink Coca-Cola, introduced by the Coca-Cola Company in April 1985. It was renamed Coke II in 1990, and discontinued in July 2002.