What McDonald’s advertising campaign began in 2003 with the phrase “I’m Lovin’ It”?

McDonald’s began its “I’m Lovin’ It” advertising campaign in 2003.

The campaign was created as a global brand platform rather than as a slogan used only in one country. Its wording was designed to sound conversational and upbeat, and the campaign used the “ba da ba ba ba” musical signature to connect advertisements across markets.

The phrase was associated with the advertising agency Heye & Partner and was adapted for McDonald’s international marketing. Justin Timberlake appeared in an early campaign-related music video, while the production and promotion of the jingle involved several creative contributors. The branding eventually became one of McDonald’s longest-running global campaign identities.

A common mix-up is treating “I’m Lovin’ It” as the title of a single song by one performer. In McDonald’s history, its primary significance is as a corporate advertising platform supported by music, television commercials, packaging, and other marketing. The phrase itself is also distinct from the earlier “You Deserve a Break Today” campaign.