Who was the voice of the McDonald's “I'm Lovin' It” jingle in its original 2003 recording?

Justin Timberlake provided the vocal performance heard in the original 2003 McDonald's “I'm Lovin' It” jingle recording. His involvement helped connect the campaign with contemporary pop music and youth culture.

The campaign was not simply a conventional commercial voice-over. It used a produced musical track, with the phrase and melody adapted for McDonald's advertising. Timberlake's recording was associated with the launch of the global campaign, while later advertisements used many localized versions and performers.

A frequent confusion is crediting Pharrell Williams, who was involved in writing and producing the song connected with the campaign, as the principal singer of the original recording. Timberlake is the name generally identified with the vocal performance used in the initial branding rollout.

The campaign's lasting importance comes from combining a memorable phrase, a compact melody, and a consistent international rollout. That approach made the slogan recognizable even when the surrounding commercial changed from country to country.