What McDonald's slogan launched in 2003 with the song “I'm Lovin' It”?

“I'm Lovin' It” was the McDonald's slogan launched in 2003 with the campaign's signature song.

McDonald's introduced the campaign internationally in 2003. The phrase was designed to express an upbeat, personal reaction to the food and restaurant experience. It was paired with a musical identity and became one of the company's longest-running global advertising platforms.

The campaign is often associated with Justin Timberlake because he appeared in the original advertising and recorded vocals for the song. The music was produced by The Neptunes, with contributions connected to the campaign's international rollout. The slogan itself, however, is McDonald's brand line rather than the name of a performer.

It is also distinct from earlier McDonald's slogans such as “You Deserve a Break Today” and “We Love to See You Smile.” Those lines belonged to different advertising eras, while “I'm Lovin' It” became the enduring phrase attached to the 2003 identity.