McDonald’s began using the global “I’m Lovin’ It” tagline in 2003.
The campaign was designed as a worldwide branding platform, giving McDonald’s a common verbal identity across many markets while allowing local advertising executions to vary. Its short, conversational wording was paired with a distinctive musical hook and the company’s existing visual branding.
The tagline is sometimes dated to the campaign’s early development rather than its public launch, which can cause confusion. It also should not be mixed up with older McDonald’s slogans such as “You Deserve a Break Today.” “I’m Lovin’ It” became one of the longest-running global taglines in the company’s history.