Which McDonald's slogan began in 2003 with the phrase “I'm Lovin' It”?

“I’m Lovin’ It” is the McDonald’s slogan that began in 2003.

McDonald’s launched the campaign internationally in 2003, making it the company’s first global advertising campaign under one central slogan. The wording used an informal contraction and present-tense language to emphasize immediate enjoyment rather than a specific menu item or restaurant feature.

The campaign also used a distinctive musical hook and the “ba da ba ba ba” vocal phrase. The song associated with the launch was recorded by Justin Timberlake, while the campaign’s music became closely connected with McDonald’s advertising around the world. Different markets adapted the commercials, but the core slogan remained consistent.

Earlier McDonald’s campaigns had included “You Deserve a Break Today” and “We Love to See You Smile.” Those slogans are important parts of the brand’s history, but “I’m Lovin’ It” became the long-running global line introduced in 2003.