What international advertising slogan did McDonald's launch in 2003?

McDonald's launched the international advertising slogan “I'm Lovin' It” in 2003.

The campaign marked a major effort to give McDonald's a shared global message. Earlier advertising often varied considerably between countries, but “I'm Lovin' It” was designed as a worldwide platform that could be adapted to local markets while keeping the same central phrase.

The slogan appeared with a musical identity and the “ba da ba ba ba” mnemonic. The campaign used television, radio, print, packaging, digital media, and in-store materials, making the phrase part of the brand's everyday environment. The apostrophe and informal wording gave it a conversational, youthful tone.

It is sometimes confused with older slogans such as “You Deserve a Break Today” or “We Love to See You Smile.” Those lines belong to earlier campaigns. “I'm Lovin' It” is specifically the global platform introduced in 2003 and remains one of McDonald's most recognizable advertising phrases.