What global McDonald's slogan was launched in 2003 with a song by Justin Timberlake?

“I'm Lovin' It” was the global McDonald's slogan launched in 2003 with a song by Justin Timberlake.

McDonald's introduced the campaign in Munich, Germany, in 2003. The phrase was paired with a pop-oriented marketing strategy intended to give the company a consistent worldwide identity while allowing local advertising to use different languages, performers, and storylines.

Timberlake recorded and appeared in material connected with the campaign's music. The “ba da ba ba ba” vocal hook became closely associated with McDonald's advertising, although the slogan itself was the central brand line. The campaign was notable because McDonald's used one overarching platform across many national markets.

The slogan is sometimes incorrectly attributed entirely to Timberlake or to the advertising agency behind the campaign. The concept involved several creative contributors, and the campaign's development has been debated. The stable historical fact is that McDonald's launched “I'm Lovin' It” globally in 2003.