What advertising slogan did McDonald's introduce globally in 2003?

McDonald's introduced the global advertising slogan “I'm Lovin' It” in 2003.

The campaign was designed as a worldwide brand platform rather than a slogan used only in one national market. Its conversational wording and upbeat tone were intended to connect McDonald's with enjoyment, everyday experiences, and popular culture. The phrase was paired with a distinctive audio signature that became closely associated with the company.

The campaign is often confused with earlier McDonald's slogans, especially “You Deserve a Break Today,” which was introduced decades earlier. “I'm Lovin' It” marked a major effort to give McDonald's a more unified international advertising identity while allowing local markets to adapt the surrounding creative work.

The slogan became one of McDonald's longest-running global campaigns. Its staying power came partly from its flexibility: the phrase could accompany food advertising, music partnerships, sports promotions, and family-focused marketing without naming a single product.