What was McDonald’s first global advertising slogan used worldwide from 2003?

“I’m Lovin’ It” was McDonald’s first global advertising slogan, introduced in 2003.

The campaign marked a major shift toward one coordinated worldwide brand platform. Its short, conversational wording was designed to work across markets and languages while expressing enjoyment rather than describing a particular menu item.

The campaign used the “ba da ba ba ba” musical phrase and appeared in television, radio, print, packaging, and restaurant promotion. Justin Timberlake was featured in an early recording associated with the campaign, while the slogan itself became the central McDonald’s brand line.

It replaced a series of earlier slogans that had been used in different periods and markets. “You deserve a break today,” for example, belonged to a much earlier campaign and is not the slogan introduced in 2003.