“I’m Lovin’ It” launched as a McDonald’s slogan in 2003 and became the company’s long-running global tagline.
The campaign was introduced internationally and used a short, highly repeatable phrase designed to work across languages and markets. Its punctuation and wording made the line visually distinctive in advertising and packaging.
The campaign is often linked with a musical hook and with Justin Timberlake, who recorded a version of the promotional song. However, the slogan itself is the branding element, while the song and advertisements were supporting parts of the wider campaign.
McDonald’s had used many earlier slogans, including “You Deserve a Break Today.” “I’m Lovin’ It” marked a move toward a more consistent worldwide brand message.