“I’m Lovin’ It” began as a McDonald’s slogan in 2003 and became the chain’s best-known modern tagline.
McDonald’s introduced the campaign internationally in 2003, using the phrase in advertising, packaging, restaurant materials, and digital marketing. The slogan’s informal wording was designed to sound like an everyday expression rather than a formal corporate claim.
The campaign was accompanied by the “ba da ba ba ba” jingle, which became closely associated with the McDonald’s brand. Justin Timberlake appeared in an early campaign-related music video, while Pharrell Williams was involved in the song connected with the launch.
Earlier slogans such as “You Deserve a Break Today” had also become famous, but “I’m Lovin’ It” was created as a global platform for the modern McDonald’s brand.