Which singer performed on McDonald’s original 2003 “I’m Lovin’ It” campaign track?

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

The campaign marked a major attempt to give McDonald’s a single global advertising identity. The phrase “I’m Lovin’ It” appeared with a pop-oriented track and became McDonald’s long-running international tagline. Timberlake’s vocal performance helped connect the commercial campaign with contemporary popular music.

The track was produced by Pharrell Williams, who was also involved in writing and production. That distinction creates a frequent attribution error: Timberlake is the singer heard on the campaign recording, while Williams is strongly associated with its creation and production.

McDonald’s launched the branding campaign in 2003, and the tagline continued in use for many years. Its longevity made it one of the company’s most recognizable modern marketing phrases.