Which slogan did McDonald’s introduce in 2003 as its global advertising tagline?

McDonald’s introduced “I’m Lovin’ It” as its global advertising tagline in 2003.

The campaign marked a major effort to give McDonald’s a more unified international identity. Earlier slogans, including “You Deserve a Break Today,” had been strongly associated with particular periods of the company’s advertising history, but “I’m Lovin’ It” was designed for worldwide use.

The campaign used a distinctive lowercase wordmark and a pop-oriented advertising style. Its launch is also associated with a song performed by Justin Timberlake, although the slogan itself became the enduring McDonald’s brand message.

A common mix-up is treating “I’m Lovin’ It” as only the title of a song or commercial. In McDonald’s branding history, it is specifically the company’s long-running advertising tagline, introduced in 2003.