McDonald's launched its “I'm lovin' it” campaign in 2003.
The phrase became a global advertising platform for McDonald's and was paired with the familiar “ba da ba ba ba” musical hook. Unlike many earlier slogans, it was designed for international use and was adapted across markets and languages.
The campaign is often confused with “You Deserve a Break Today,” an earlier McDonald's slogan from the 1970s. Those phrases belong to different eras of the company's advertising history.
The 2003 campaign helped give McDonald's a more contemporary, music-led identity. It also made the slogan unusually durable: the words continued appearing in advertising, restaurant materials, and corporate communications long after the original launch campaign ended.