Which singer performed the vocal track associated with McDonald’s original “I’m lovin’ it” campaign?

Justin Timberlake performed the vocal track associated with McDonald’s original “I’m lovin’ it” campaign.

The campaign used a song titled “I’m Lovin’ It,” written and produced with contributions from several music professionals. Timberlake recorded the vocal version, which helped connect the advertising campaign with contemporary pop music.

The McDonald’s advertising jingle is often remembered more strongly than the full song, leading to confusion about who performed it. The brief “ba da ba ba ba” hook became the campaign’s most recognizable audio element.

Timberlake’s involvement was part of the campaign’s launch-era promotion, not evidence that he created McDonald’s entire branding strategy. The broader campaign involved agencies, marketers, songwriters, and regional adaptations.