Who recorded the song used in McDonald's “I'm Lovin' It” campaign?

Justin Timberlake recorded the song used in McDonald's “I'm Lovin' It” campaign.

Timberlake recorded a song titled “I'm Lovin' It” for the campaign launched by McDonald's in 2003. The recording helped connect the advertising phrase with contemporary pop music and gave the international campaign a recognizable celebrity voice.

The campaign's famous short hook became more prominent in advertisements than the complete song itself. The music was associated with the production work of Tom Batoy and the creative team behind the worldwide rollout. This combination of a concise phrase, a repeated melody, and a popular recording artist made the identity easy to recognize across markets.

The singer is sometimes confused with the people who wrote, produced, or performed other versions of campaign music. Timberlake's role was recording the song, not creating the Golden Arches or inventing McDonald's earlier slogans. Those belong to separate chapters of the company's branding history.