Which advertising campaign became McDonald's global brand platform in 2003?

“I'm Lovin' It” became McDonald's global brand platform in 2003.

The campaign marked a major shift toward a single phrase that could work across markets, languages, television commercials, packaging, and digital advertising. Its short wording expressed enjoyment rather than focusing only on speed, value, or a particular menu item.

The campaign is strongly associated with a musical hook performed by Justin Timberlake in the original launch advertising. The phrase was also connected with music producer and artist collaborations, helping McDonald's present itself as part of contemporary popular culture.

Earlier McDonald's slogans remained important in the company's history, including “You Deserve a Break Today.” However, “I'm Lovin' It” is the campaign most directly identified with the brand's early-2000s global repositioning. It is also commonly written with the apostrophe in “Lovin'.”