Which recording artist sang on the 2003 McDonald’s “I’m Lovin’ It” campaign track?

Justin Timberlake sang on the 2003 McDonald’s “I’m Lovin’ It” campaign track.

The campaign used a pop-oriented song and a short musical hook to make the phrase memorable across television, radio, and other advertising. Timberlake’s vocal performance helped connect the corporate slogan with contemporary popular music rather than presenting it only as a spoken advertising line.

The campaign was developed with the advertising agency Heye & Partner and was associated with the production team behind the song. The melody and phrase became a long-running part of McDonald’s global identity, while advertising executions differed between countries.

A common mix-up is to credit Timberlake as the sole creator of the entire campaign or slogan. He was the featured singer on the track; the advertising concept, songwriting, production, and commercial adaptation involved additional people and agencies.