William Montague Backer or Bill Backer (June 9, 1926 – May 13, 2016) was an American advertising executive. He became an industry legend for creating the slogan "Things go better with Coke", further defining the product as "the real thing", and convinced the world that Miller Lite was "everything you ever wanted in a beer, and less", and should be consumed at "Miller Time". In 1971, Backer created the Coca-Cola campaign and accompanying song "I'd Like to Teach the World to Sing (In Perfect Harmony)."